Pionniers de la consommation : comment les Africains ont dicté le tempo du commerce mondial au 19e siècle

Source: The Conversation – in French – By Alessandro De Cola, Univertsity Assistant (Postdoc), Universität Wien; University of the Free State

Une nouvelle « classe de consommateurs » dynamique émerge d’Afrique et attire l’attention internationale. Avec la perspective d’une augmentation des revenus et d’une population jeune, les cabinets de conseil internationaux considèrent le continent comme la prochaine frontière pour les biens de consommation. Les entrepreneurs mondiaux soulignent même que les consommateurs africains deviennent de plus en plus sophistiqués.

Mais l’influence des consommateurs africains sur les marchés mondiaux n’est pas une nouveauté. Dans les années 1800, la demande des consommateurs du continent dictait aux usines européennes la conduite à tenir.

Nous sommes une équipe d’historiens économiques et sociaux, d’anthropologues et de spécialistes des études africaines. Notre projet de recherche explore les racines de cette dynamique.




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En nous concentrant sur la demande africaine en biens tels que les armes, les perles de verre et les tissus, nos recherches remettent en question l’idée eurocentrique selon laquelle l’Afrique n’était qu’un fournisseur de main-d’œuvre bon marché et de matières premières avant la « ruée vers l’Afrique » des puissances coloniales.

Au contraire, dans les années 1800, le continent était un moteur clé de la production industrielle, obligeant les fabricants à adapter leurs produits aux préférences africaines.

Cela remet en question l’idée reçue d’une mondialisation à sens unique, partant des économies dominantes vers les régions dites périphériques. En fait, la mondialisation a toujours été un processus connecté, dans lequel les consommateurs africains, bien que souvent négligés, ont joué un rôle décisif dans la structuration des marchés mondiaux.

Les armes

L’analyse du commerce des armes nous conduit à l’estuaire du fleuve Congo à la fin de l’ère précoloniale. Avant la fin des années 1800 et le colonialisme, cette région échappait au contrôle politique européen direct.

Le commerce illégal des esclaves a duré au moins jusqu’au milieu des années 1850, lorsque l’exportation de produits licites a finalement commencé à prendre de l’ampleur. À partir des années 1850 environ, l’un des produits les plus appréciés des consommateurs de l’estuaire du Congo était le « fusil de traite ».

Ces mousquets robustes à chargement par la bouche étaient considérés comme obsolètes par les fabricants et les commerçants européens. Dans l’estuaire du Congo, ces armes à feu restaient très demandées.

Les fusils de traite pouvaient être à silex (utilisant un silex pour enflammer la poudre à canon) ou à percussion (utilisant une petite capsule explosive pour l’enflammer). Les fusils à silex étaient plus populaires car les silex étaient plus faciles à trouver en Afrique.

De plus, les armes à canon lisse chargées par la bouche, généralement fabriquées en fer forgé « tendre » plutôt qu’en acier « dur », étaient non seulement moins chères, mais aussi plus accessibles sur le plan technologique que les fusils pour les consommateurs africains. Bien que les fusils à silex n’étaient parfois pas efficaces pour la chasse au gros gibier, ils avaient une valeur militaire considérable.

Pour comprendre le rôle de ces armes dans l’histoire africaine, il faut toutefois aller au-delà de leur simple fonction. Les armes à feu importées revêtaient également souvent une signification symbolique, façonnée par les normes et les structures de pouvoir locales.

Par exemple, chez les locuteurs kikongo du bas-Congo, les coups de feu étaient utilisés comme signe de réjouissance lors des célébrations et des funérailles. On croyait que le bruit chassait les mauvais esprits et facilitait le passage dans le monde des esprits.

Bien que le commerce des armes à feu dans le bas Congo ne soit pas toujours facile à quantifier, on sait par exemple que la société Nieuwe Afrikaansche Handels Vennootschap importait en moyenne 24 000 armes à feu par an entre 1884 et 1888. La plupart étaient d’anciens fusils à percussion français modifiés en armes à silex à Liège.

Le développement du commerce des armes dans le bas Congo reflète également globalement les évolutions de l’industrie européenne des armes à feu. La demande des consommateurs africains n’était pas seulement stimulée par la production industrielle européenne, mais constituait plutôt une force active qui a façonné et soutenu l’intégration économique mondiale tout au long du XIXe siècle.

Les perles de verre

Les fabricants de perles de verre vénitiens étaient bien conscients que leur industrie spécialisée dépendait de la demande africaine et asiatique. Il est pratiquement impossible de déterminer avec précision combien de perles de verre ont été importées sur le continent africain au XIXe siècle. Les perles de verre passaient par de nombreuses mains (dans de nombreux ports différents) avant d’atteindre les côtes africaines. Les informations disponibles sur la production vénitienne ne sont pas cohérentes.

Les historiens ont montré que, au cours des années 1800, les perles produites à Venise constituaient une marchandise essentielle échangée contre de l’ivoire le long des routes caravanières d’Afrique de l’Est reliant la côte swahilie aux Grands Lacs. Ces routes ont été établies par des commerçants arabes et nyamwezi (originaires de l’actuelle Tanzanie) lors d’expéditions financées par des marchands gujaratis venus d’Inde.

À mesure que la demande en ivoire augmentait sur les marchés européens et américains, ces commerçants ont avancé plus loin à l’intérieur du continent pour trouver des ivoires d’éléphants et des cornes de rhinocéros. Ce faisant, ils ont établi de nouveaux centres commerciaux.

Un livre à couverture en bois ouvert sur des pages présentant de nombreux carrés numérotés en rangées, chaque numéro correspondant à un échantillon de perles de verre colorées fixées à cet endroit.
Un livre vénitien présentant les perles disponibles.
© British Museum, CC BY-NC-SA

Les perles de verre étaient faciles à transporter et relativement bon marché. Elles étaient donc particulièrement adaptées comme monnaie d’échange dans les transactions quotidiennes. Les perles jouaient un rôle essentiel dans l’approvisionnement en nourriture des porteurs de caravanes. Apporter le mauvais type de perles de verre pouvait ruiner une expédition. Il fallait donc se tenir informé des types de perles les plus demandés sur des itinéraires spécifiques.

Grâce aux chefs de caravane, des agents européens basés dans les principaux centres commerciaux tels que Zanzibar recueillaient des informations. Ces informations étaient envoyées par courrier ou par télégramme au siège de leur entreprise, ce qui permettait aux producteurs de répondre à la demande le plus rapidement possible.

Aujourd’hui, les échantillons de cartes présentant les types de perles de verre les plus demandés, conservées dans les musées européens et américains, sont les traces matérielles de toute cette chaîne d’information.

Les tissus

La demande africaine a également influencé l’innovation technologique. Sur la côte est de l’Afrique et au Soudan, les populations importaient volontiers des millions de mètres de tissu de coton américain non blanchi. Cela a contribué à la prospérité des industries américaines, à tel point que le terme « merikani » (dérivé de « américain ») est devenu un terme générique pour désigner ce produit, puis plus tard, celle des fabricants indiens.

Sa distribution était toutefois limitée par les coûts de transport. Les marchés éthiopiens étaient principalement approvisionnés par la production locale, forte d’une solide tradition de filage et de tissage de coton. Le tissu était d’un blanc singulier, très doux et très apprécié des voyageurs qu’ils le comparaient aux meilleurs textiles européens. En Éthiopie, le seul avantage technologique évident dont bénéficiaient les producteurs occidentaux concernait les teintures, en particulier après l’introduction des couleurs synthétiques dans les années 1870.

Un morceau de tissu beige carré avec des lignes rouges le long du bord inférieur.
Un shamma, un châle éthiopien typique, en tissu de coton blanc local teint avec des colorants provenant de l’étranger.
© British Museum, CC BY-NC-SA

Les tisserands éthiopiens recherchaient avidement des fils colorés provenant d’Europe et d’Inde pour les associer à leur propre tissu blanc. Cette demande a favorisé la diffusion de nouvelles technologies de teinture à l’étranger. La situation a considérablement changé après l’unification de l’Éthiopie sous Menelik II, dont le règne a apporté la stabilité et le développement des infrastructures.

Le coton brut et non blanchi est devenu largement disponible, même à l’intérieur du pays, offrant une option bon marché et facile à laver pour les gens ordinaires : 10 millions de mètres carrés ont été importés des États-Unis rien qu’en 1905-1906. Pendant ce temps, les élites éthiopiennes continuaient à privilégier le coton local, mais le complétaient avec des accessoires importés tels que des chapeaux en feutre et des parapluies. Le tissu coloré, autrefois un luxe, est devenu un bien de consommation populaire.

En résumé

L’histoire de la commercialisation des armes, des perles de verre et des tissus en Afrique, et de la manière dont la production et la distribution ont dû s’adapter aux besoins du continent, offre une image plus nuancée de la façon dont le commerce mondial tel que nous le connaissons a pris forme.

Nos recherches soulignent que la mondialisation n’a pas été déclenchée dans les pays du Nord, mais dépendait de consommateurs situés loin des centres de production.


Nous avons abordé ces sujets dans une série de séminaires en ligne désormais disponible sur YouTube.

The Conversation

Les recherches sur lesquelles s’appuie cet article ont été financées par l’Union européenne – Next Generation EU, Missione 4 Componente 1 CUP J53D23000530006

Les recherches sur lesquelles s’appuie cet article ont été financées par l’Union européenne – Next Generation EU, Missione 4 Componente 1 CUP J53D23000530006.

ref. Pionniers de la consommation : comment les Africains ont dicté le tempo du commerce mondial au 19e siècle – https://theconversation.com/pionniers-de-la-consommation-comment-les-africains-ont-dicte-le-tempo-du-commerce-mondial-au-19e-siecle-271573

Australia is reeling from the worst terrorist attack on home soil. Could it have been prevented?

Source: The Conversation – Global Perspectives – By Greg Barton, Chair in Global Islamic Politics, Alfred Deakin Institute for Citizenship and Globalisation, Deakin University

With 15 civilians and one gunman dead so far, and another 40 people injured, Australia is reeling from its worst act of terrorism on home soil. Two gunmen opened fire on a Jewish community gathering to celebrate the first night of Hanukkah at Archer Park on Sydney’s famous Bondi Beach.

Police have confirmed the two alleged attackers were father and son, aged 50 and 24. The father, Sajid Akram, who was licensed to own six firearms, was shot dead by police. The son, Naveed Akram, remains under police guard in hospital.

Given it was clearly an antisemitic attack, authorities soon after declared it an act of terrorism – that is, an act of politically motivated violence. This designation also gives authorities extra resources in their response and in bringing those responsible to justice.

As Australians try to process their shock and grief, there has been some anger in the community that not enough has been done to protect Jewish Australians from the rising antisemitism evident since the Hamas attack on Israel in October 2023 and the ensuing Gaza war.

What we know about the alleged attackers

ASIO (The Australian Security Intelligence Organisation) Director-General Mike Burgess has said one of the alleged gunmen was “known” to ASIO, though he did not specify which one. Being “known” to authorities can simply mean someone has been associated with networks and communications that have caused concern to authorities. The ABC has reported that Naveed Akram came to the attention of authorities after the arrest of Islamic State Sydney cell leader Isaac El Matari in July 2019.

However, there are hundreds of people who come to authorities’ attention for their contact, online or off, with extremist networks and individuals. With limited resources (and authorities’ resources will always be limited, no matter how much funding they have), they have to run a triage system to assess the threat an individual or a group may pose, and manage the risk as best they can.

They will carefully assess what is being said and the language used, for example, as well as looking at whether a person has a history of violence. As angry and upset as people understandably are in the wake of such a horrific incident, it needs to be recognised that authorities can’t simply arrest everyone who expresses extremist ideas or has passing links with extremist elements.

We still need to know more about this terror attack and the alleged attackers, but to date there has been no evidence of a network in operation. Given the alleged gunmen were father and son, this technically fits the profile of a “lone actor” attack, as we saw in the Lindt Cafe siege in 2014, and Christchurch in 2019.

It is very difficult for authorities to predict and therefore prevent lone actor attacks – by their nature, there’s often no sign beforehand of the potential for violence. And public sites like the reserve at Bondi Beach require extensive resources to police, meaning not all can be adequately secured.

As Burgess pointed out in his annual threat assessment, “our greatest threat remains a lone actor using an easily obtained weapon”. Sadly, that has been shown to be true.

Changing nature of terrorist threat in Australia

There has been much attention in recent years on the rise of far-right extremism and terrorism.

One of the best guides to this is Burgess’ annual threat assessment. In it he explained that a decade ago, just one in ten cases ASIO was following up involved right-wing extremists, with radical Islamist groups occupying most of their attention. However, in recent years the ratio has shifted closer to one in two investigations involving right-wing extremism. In other words, a lot of ASIO’s attention and resources are now necessarily tied up with combating right-wing extremism, especially following the Christchurch terror attack in which 51 people were shot dead by an Australian far-right terrorist during Friday prayers in two New Zealand mosques.

More broadly, Islamic terrorism continues to remain a global threat. IS and Al-Qaeda remain active in the Middle East and increasingly in Africa, as well as central Asia and Afghanistan. Generally, authorities are doing a good job of keeping on top of any threats these networks might pose in Australia.

There is no doubt the general atmosphere between pro-Palestinian and Jewish groups has become far more febrile in the wake of the Hamas attack and the Gaza war. There is a lot of anger and frustration as scenes of violence and suffering are broadcast daily, and we have seen a rise both in antisemitism and Islamophobia since the war began, simply because of the way it plays out in people’s imaginations.

But even in the protests we have seen over many months, the number of people who might use this sentiment to spur violence is small.

Again, there is no evidence the Bondi shooting was part of a wider network, and it is very difficult to stop a lone actor attack on a public site.

In a glimmer of hope, the man whose much-lauded act of heroism in wrestling one of the alleged gunman’s weapons from him has been named as 43-year-old Muslim fruit shop owner Ahmed Al-Ahmed. It is hoped this man’s bravery, which showed us the best of humanity in the midst of the worst, will stop any simplistic analysis of blaming the Muslim community for such violence. We have seen this in the United States, and Australia must do much better.

Has the government done enough?

It is very difficult to keep outdoor public events entirely safe: buildings are relatively easy to secure, but a park at a beach far less so.

The government clearly needs to do more to stop terrorism, and public events are an obvious focus for more resources. No one should be satisfied with where we are right now. It is simply horrifying. But it’s going to take a lot of work to figure out where we can best use resources.

We can’t close every loophole or thwart every risk. We can’t stop people turning to violence, and we can’t police every hateful thought. It has been said this was an attack on all of us, and that’s very true. As the message of Hanukkah inspires us, now is the time when we need to pull together as Australians from all faiths and communities, and work together to ensure that light triumphs over darkness.

The Conversation

Greg Barton is Rector (academic head) of Deakin University Lancaster University Indonesia (DLI). Greg receives funding from the Australian Research Council. He is engaged in a range of projects funded by the Australian government that aim to understand and counter violent extremism in Australia and in Southeast Asia and Africa.

ref. Australia is reeling from the worst terrorist attack on home soil. Could it have been prevented? – https://theconversation.com/australia-is-reeling-from-the-worst-terrorist-attack-on-home-soil-could-it-have-been-prevented-272048

Bondi attack came after huge increase in online antisemitism: research

Source: The Conversation – Global Perspectives – By Matteo Vergani, Associate Professor and Director of the Tackling Hate Lab, Deakin University

At least 16 people – including a ten-year-old child – are dead after two men opened fire on a crowd of people celebrating the Jewish holiday of Hanukkah on Sunday in a public park at Sydney’s Bondi Beach. Many more are injured.

I am horrified. But as a researcher who studies hate and extremist violence, I am sadly not surprised.

The Jewish community has been a top target for terrorist ideologies and groups for a long time. Many people working in this field have been expecting a serious attack on Australian soil.

Much remains unclear about the Bondi terrorist attacks and it’s too early to speculate about these gunmen specifically. The investigation is ongoing.

But what about antisemitic sentiment more broadly?

Our research – which is in the early stages and yet to be peer reviewed – has recorded a significant and worrying increase in antisemitic sentiment after October 7.

Our research

We have been training AI models to track online sentiment in social media targeting Australian communities, including Jewish people.

That means working with humans – including extremism experts and people in the Jewish community – to label content. This is to teach our model if the content it is encountering is hateful or not.

Based on definitions adopted by the Jewish community, we distinguished between two main types of antisemitism: “old” antisemitism and “new” antisemitism.

“Old” antisemitism targets Jews as Jews. It draws on entrenched myths and stereotypes that portray them as alien, dangerous, or morally corrupt.

“New” antisemitism shifts the focus from individual Jews to the state of Israel. It blames Jews collectively for Israel’s actions.

Many in the Jewish community see this as a modern continuation of historical antisemitism. Critics (both within and outside the Jewish community) contend it risks conflating legitimate opposition to Israeli policies with antisemitism.

Central to this debate is whether anti-Israel sentiment represents a continuation of age-old prejudices or a political response to the Israeli-Palestinian conflict.

In our research, we tracked both “old” and “new” antisemitism.

A sharp increase

We found that both increased sharply after October 7.

For example, we studied posts on X (formerly Twitter) geolocated in Australia before and after October 7. We wanted to understand the size of the rise in antisemitism.

We found that “old” antisemitism rose from an average of 34 tweets a month in the year before October 7 to 2,021 in the following year.

“New” antisemitism increased even more, rising from an average of 505 a month in the year before October 7 to 21,724 in the year after.

Some examples of “old” antisemitism are explicit, such as calls to “get rid of all Jews” or “kill all Jews”.

Others are more indirect, including minimising or denying the Holocaust. Examples include posts claiming that “if the Holocaust of 6 million Jews were true, Israel could not exist today” or that the Nazis had only a minimal impact on the Jewish population.

Other forms of hate rely on conspiracy theories, such as claims that “Jews are paying to destroy Australia”.

However, the vast majority of the content our models identified as antisemitic fell into the category of “new” antisemitism. This included content that blamed the Jewish community for events in Israel, such as calling all Australian Jews “baby killers” or “Zionazi fu–wits”, regardless of their personal political views and opinions about the Israeli government and its actions.

(All examples here are drawn from real content, but the wording has been slightly modified to anonymise them and prevent identification of the original authors).

In other words, we have seen an overall escalation of hostilities against Jews online.

More extreme and explicit calls for violence rarely appear on mainstream platforms. They tend to circulate on fringe social media, such as Telegram.

On X, we have seen a collision of mainstream discourse and fringe discourse, due to the lack of moderation.

But antisemitism doesn’t always involve slurs, meaning it can also happen in mainstream platforms. Especially after the election of Trump and the relaxation in moderation practises of Meta, we have also seen it on Instagram. This includes Instagram posts published after the Bondi attack.

Could more have been done?

Certainly the Jewish community, I am sure, will feel not enough was done.

Jillian Segal, Australia’s first government-appointed special envoy for combating antisemitism, released her plan for addressing the issue back in July.

As I wrote at the time, the recommendations fell into three main categories:

  1. preventing violence and crime, including improved coordination between agencies, and new policies aimed at stopping dangerous individuals from entering Australia

  2. strengthening protections against hate speech, by regulating all forms of hate, including antisemitism, and increasing oversight of platform policies and algorithms

  3. promoting antisemitism-free media, education and cultural spaces, through journalist training, education programs, and conditions on public funding for organisations that promote or fail to address antisemitism.

The government had said it will consider the recommendations. Segal has now said government messaging combating antisemitism has “not been sufficient”.

Some might argue addressing points two and three could have helped prevent the Bondi attack. A common assumption is that a climate of widespread antisemitism can embolden violence.

The reality, however, is that this is hard to establish. People who commit terrorist acts – whether they self radicalise or are recruited by terrorist organisations – do not necessarily respond to changes in broader public sentiment.

That said, there is obvious value in prevention work aimed at reducing hostility and antisemitic attitudes, even while small networks or individuals committed to violent terrorism may still exist.

Preventing terrorist violence of this scale relies primarily on effective law enforcement. This requires adequate resourcing and a clear legislative framework.

Education and broader cultural change matter. In short term, however, they are less likely to be as effective at preventing acts of terrorism as measures such as firearm regulation, monitoring extremist networks, and disrupting plots before they turn into action.

The Conversation

Matteo Vergani receives funding from the Australian government (ARC, Department of Home Affairs) and the Canadian government (Public Safety Canada).

ref. Bondi attack came after huge increase in online antisemitism: research – https://theconversation.com/bondi-attack-came-after-huge-increase-in-online-antisemitism-research-272045

‘An act of evil antisemitism’: at least 15 dead in terrorist attack on Bondi Beach

Source: The Conversation – Global Perspectives – By Alexandra Hansen, Deputy Editor and Chief of Staff, The Conversation

The death toll has risen to 15 after two gunmen opened fire on a crowd at Bondi Beach at about 6.47pm on Sunday. Thirty-eight people were injured and taken to hospital, including two police officers and four children. One of the gunmen is also dead. It is the deadliest mass shooting in Australia since the Port Arthur massacre in 1996.

A crowd of more than 1,000 had gathered to celebrate the first day of the Jewish festival Hanukkah. Bondi Beach is in the Sydney eastern suburbs, the heart of the Jewish community. New South Wales police have declared the shooting a terrorist attack.

Police confirmed one suspect had been taken into custody and was in serious condition. Another suspect was killed at the scene and police said they were investigating the possibility of a third offender. One of the attackers was known to authorities.

On Sunday evening, police were also investigating reports of an explosive device near the beach. At a press conference on Sunday night, New South Wales Police Commissioner Mal Lanyon confirmed an improvised explosive had been found in a car.

ASIO head Mike Burgess said Australia’s terrorism threat level remained at “probable”. This means there is a greater than 50% chance of an onshore attack or attack planning in the next twelve months. “I don’t see that changing at this stage,” Burgess told reporters in Canberra on Sunday night.

Soon after the shooting began, horrific vision emerged on social media of people shot dead or injured, as well as footage of incredible acts of bravery from passersby trying to thwart the attack.

One video shows a bystander tackling a gunman from behind, wrestling his gun from him. Others were performing CPR on the injured on the beach.

A Jewish chaplain with blood on him spoke of trying to save people amid terrible scenes of people shot in the head. People fled as the attack unfolded, but some elderly people were unable to run.

Prime Minister Anthony Albanese described the scenes as “shocking and distressing”. “My thoughts are with every person affected.” In the wake of the attack he convened an emergency meeting of the National Security Committee of cabinet.

Albanese received a preliminary briefing from Australian Federal Police acting Deputy Commissioner Nigel Ryan and New South Wales Premier Chris Minns, who convened an emergency meeting of state cabinet. Albanese defended himself against criticism he had not taken antisemitism seriously enough.

“Australia is braver than those who seek to make us afraid […] we will see justice done, and we will come through this together,” he said.

“There are nights that tear at our nation’s soul in this moment of darkness,” Albanese said. “We must be each other’s light. Hold on to the true character of the country that we love.”

At Sunday night’s press conference, Minns said “This cowardly act of terrifying violence is shocking and painful to see, and represents some of our worst fears about terrorism in Sydney.” He asked Australians to “wrap their arms around” the Jewish community, and praised both the outpouring of love and support towards the Jewish community as well as the extraordinary demonstrations of courage in the wake of the attack.

Lanyon called for calm, and said this is “not a time for retribution”. He assured the public no stone would be left unturned in bringing those responsible to justice and ensuring there are no further attacks. “This type of disgraceful activity, this wanton use of violence, the taking of innocent lives is unacceptable to New South Wales.”

Independent federal MP Allegra Spender, who represents Bondi in her seat of Wentworth, also expressed her shock and horror.

Opposition Leader Sussan Ley also expressed her shock. “Australians are in deep mourning tonight, with hateful violence striking at the heart of an iconic Australian community, a place we all know so well and love, Bondi.

“Today we stand together as Australians against hate in this moment of profound tragedy and shock.”

In a statement, Israeli President Isaac Herzog said “our heart misses a beat”. He called on the Australian government to “take action to fight against the enormous wave of antisemitism which is plaguing Australian society”.

The Australian Imams Council issued a statement condemning the attack.

“These acts of violence and crimes have no place in our society. Those responsible must be held fully accountable and face the full force of the law,” the statement said.

“Our hearts, thoughts and prayers are with the victims, their families, and all those who witnessed or were affected by this deeply traumatic attack.”

A timeline of the events

  • 5pm – Chanukah by the Sea event begins. It’s run by the Chabad of Bondi which promotes it as “the perfect family event to celebrate light, warmth, and community.”
A person handing someone a hot jam donut
Instagram user @kobi_farkash was at the Chanukkah by the Sea event.
@kobi_farkash/Instagram

Beachgoers seen running from shots.
Beachgoers seen running from shots.
c29sty/Instagram

  • Sometime after 6.45pm – Two shooters can be seen firing from a bridge towards people at the Chanukah by the Sea event. They have a number of guns. Video footage shows cars driving past them as they shoot.
Footage shows the two gunmen beginning their attack from the bridge.
Footage shows the two gunmen beginning their attack from the bridge.
AAP

  • One of the shooters, since identified as Sajid Akram, moves to the park grass.

  • A bystander, since identified as Ahmed El-Ahmed, tackles gunman Sajid Akram.
Incredible footage of Ahmed al Ahmed tackling a gunman and taking his weapon.
Incredible footage of Ahmed al Ahmed tackling a gunman and taking his weapon.
ABC

  • Sajid Akram runs back to bridge where video shows his son Naveed Akram is still shooting. He re-arms. Both men come under fire from police nearby.
The gunman returns to the bridge and re-arms.
The gunman returns to the bridge and re-arms.
ABC

  • Sajid Akram is shot and falls to the ground.
Drone footage shows one gunman down while a second remained firing.
Drone footage shows one gunman down while a second remained firing.
ABC
  • The second alleged gunman, Naveed Akram, is shot. A man in pale clothing walks towards the bridge then motions for police to come. Another man moves onto the bridge and raises his hands, a gunshot can be heard in the video footage.
Chaos ensues as bystanders and police rush the bridge.
Chaos ensues as bystanders and police rush the bridge.
AAP/ABC/X
  • Police and members of the public run onto the bridge in chaotic scenes. One man can be seen kicking one of the alleged gunmen, while another two people are fighting each other.

  • By 7.30, police are seen surrounding the shooters on the ground.

Footage shows police securing the scene and stabilising the injured gunman.
Footage shows police securing the scene and stabilising the injured gunman.
ABC
  • Sajid Akram is confirmed to have died, while Naveed Akram is in hospital with injuries.

This article has been updated.

The Conversation

ref. ‘An act of evil antisemitism’: at least 15 dead in terrorist attack on Bondi Beach – https://theconversation.com/an-act-of-evil-antisemitism-at-least-15-dead-in-terrorist-attack-on-bondi-beach-272031

‘An act of evil antisemitism’: at least 16 dead in terrorist attack on Bondi Beach

Source: The Conversation – Global Perspectives – By Alexandra Hansen, Deputy Editor and Chief of Staff, The Conversation

The death toll has risen to 16 after two gunmen opened fire on a crowd at Bondi Beach at about 6.47pm on Sunday. Thirty-eight people were injured and taken to hospital, including two police officers and four children. One of the gunman was among the dead. It is the deadliest mass shooting in Australia since the Port Arthur massacre in 1996.

A crowd of more than 1,000 had gathered to celebrate the first day of the Jewish festival Hanukkah. Bondi Beach is in the Sydney eastern suburbs, the heart of the Jewish community. New South Wales police have declared the shooting a terrorist attack.

Police confirmed one suspect had been taken into custody and was in serious condition. Another suspect was killed at the scene and police said they were investigating the possibility of a third offender. One of the attackers was known to authorities.

On Sunday evening, police were also investigating reports of an explosive device near the beach. At a press conference on Sunday night, New South Wales Police Commissioner Mal Lanyon confirmed an improvised explosive had been found in a car.

ASIO head Mike Burgess said Australia’s terrorism threat level remained at “probable”. This means there is a greater than 50% chance of an onshore attack or attack planning in the next twelve months. “I don’t see that changing at this stage,” Burgess told reporters in Canberra on Sunday night.

Soon after the shooting began, horrific vision emerged on social media of people shot dead or injured, as well as footage of incredible acts of bravery from passersby trying to thwart the attack.

One video shows a bystander tackling a gunman from behind, wrestling his gun from him. Others were performing CPR on the injured on the beach.

A Jewish chaplain with blood on him spoke of trying to save people amid terrible scenes of people shot in the head. People fled as the attack unfolded, but some elderly people were unable to run.

Prime Minister Anthony Albanese described the scenes as “shocking and distressing”. “My thoughts are with every person affected.” In the wake of the attack he convened an emergency meeting of the National Security Committee of cabinet.

Albanese received a preliminary briefing from Australian Federal Police acting Deputy Commissioner Nigel Ryan and New South Wales Premier Chris Minns, who convened an emergency meeting of state cabinet. Albanese defended himself against criticism he had not taken antisemitism seriously enough.

“Australia is braver than those who seek to make us afraid […] we will see justice done, and we will come through this together,” he said.

“There are nights that tear at our nation’s soul in this moment of darkness,” Albanese said. “We must be each other’s light. Hold on to the true character of the country that we love.”

At Sunday night’s press conference, Minns said “This cowardly act of terrifying violence is shocking and painful to see, and represents some of our worst fears about terrorism in Sydney.” He asked Australians to “wrap their arms around” the Jewish community, and praised both the outpouring of love and support towards the Jewish community as well as the extraordinary demonstrations of courage in the wake of the attack.

Lanyon called for calm, and said this is “not a time for retribution”. He assured the public no stone would be left unturned in bringing those responsible to justice and ensuring there are no further attacks. “This type of disgraceful activity, this wanton use of violence, the taking of innocent lives is unacceptable to New South Wales.”

Independent federal MP Allegra Spender, who represents Bondi in her seat of Wentworth, also expressed her shock and horror.

Opposition Leader Sussan Ley also expressed her shock. “Australians are in deep mourning tonight, with hateful violence striking at the heart of an iconic Australian community, a place we all know so well and love, Bondi.

“Today we stand together as Australians against hate in this moment of profound tragedy and shock.”

In a statement, Israeli President Isaac Herzog said “our heart misses a beat”. He called on the Australian government to “take action to fight against the enormous wave of antisemitism which is plaguing Australian society”.

The Australian Imams Council issued a statement condemning the attack.

“These acts of violence and crimes have no place in our society. Those responsible must be held fully accountable and face the full force of the law,” the statement said.

“Our hearts, thoughts and prayers are with the victims, their families, and all those who witnessed or were affected by this deeply traumatic attack.”


This article has been updated.

The Conversation

ref. ‘An act of evil antisemitism’: at least 16 dead in terrorist attack on Bondi Beach – https://theconversation.com/an-act-of-evil-antisemitism-at-least-16-dead-in-terrorist-attack-on-bondi-beach-272031

Intervene or run and hide: what should you do during public violence like the attacks at Bondi?

Source: The Conversation – Global Perspectives – By Milad Haghani, Associate Professor and Principal Fellow in Urban Risk and Resilience, The University of Melbourne

A bystander tackles a gunman at the Bondi Beach mass shooting Instagram

As Sunday’s Bondi Beach attack unfolded, many will have seen footage of a man acting alone, moving toward one of the gunmen and wrestling the weapon from his hands.

It was an extraordinary act of bravery that resulted in him being shot twice.

The man was named as 43-year-old Ahmed al Ahmed, a local fruit shop owner.

Incredible bravery, but there are risks

We have no way of knowing how many additional lives were saved as a result of Ahmed’s bravery. But it almost certainly prevented further loss of life.

The moment is reminiscent of when a bystander similarly intervened at great personal risk during the Bondi Junction shopping centre attack in 2024.

When acts of courage like these occur, we rightly take notice and commend them.

But they also raise important and often overlooked questions: what motivates ordinary people to take such selfless, high-risk actions, is bystander intervention a good strategy, or does it go against official advice during mass violence events?

Two types of ‘bystander effect’

Many people would have heard of the “bystander effect”, which occurs when the presence of others discourages someone from intervening in an emergency situation, against a bully, or during an assault or other crime.

But decades of behavioural research complicate the popular idea that people inevitably freeze or look away when others are present during dangerous situations.

A large meta-analysis of bystander behaviour shows in genuinely dangerous, unambiguous emergencies (like those involving a clear perpetrator), the classic (passive) bystander effect is substantially weakened, and in some cases even reversed.

In other words, violent attacks are precisely the kinds of situations where people become likelier to act.

One reason is danger clarifies responsibility. When a situation is clearly life-threatening, people recognise it faster and are less likely to wait for social cues or reassurance from others.

We see time and again that in clear high-risk emergencies (particularly those involving violence), responsibility often sharpens rather than disappears.

An analysis of more than 100 suicide attacks in Israel shows bystander intervention can significantly reduce overall casualties.

Across these documented incidents, intervention rarely prevented an attack altogether but it frequently disrupted the attacker’s control over timing and location, triggering premature action in less crowded settings and saving lives as a result.

The same analysis, however, also shows bystander intervention often came at a direct personal cost to the interveners.

But active bystander behaviour takes many forms and can occur at different stages.

It may also involve:

  • someone who knows the perpetrator noticing and reporting concerning behaviour in the lead-up to an attack

  • guiding others to safety or sharing information as events unfold

  • providing assistance and coordination in the aftermath.

However, getting involved does seem to fly in the face of official advice from Australian authorities.

In fact, only a few weeks ago, the Australia–New Zealand Counter-Terrorism Committee launched a new national public safety campaign.

A new safety message

The new public safety campaign explicitly recognises that Australia is a safe country but there remains a risk of weapons attacks in crowded places, and that knowing how to respond can save lives.

The campaign introduced the guidance “Escape. Hide. Tell.” which means:

  • escape: move quickly and quietly away from danger but only if it is safe to do so

  • hide: stay out of sight and silence your mobile phone

  • tell: call police by dialling Triple Zero (000) when it is safe.

The aim of this advice is to help people respond in the critical first moments before police arrive, make informed decisions, and increase their chances of staying safe.

The official Australian guidance does not include any instruction to confront an attacker.

By contrast, US public safety messaging such as the FBI’s “Run. Hide. Fight” guidance does include a “fight” step, but only as a last-resort option when escape and hiding are not possible and life is in immediate danger.

Australian authorities have chosen not to include such a step, emphasising avoidance and reporting rather than confrontation.

Some practical advice

My previous experimental research has identified more specific behavioural guidance that can improve survival chances in violent attacks, particularly in crowded environments.

Using computer modelling and controlled experiments with real crowds, I have identified several strategic areas to improve their survival chance in such events.

First, moving slowly away from danger is not ideal – people need to move away from the source of threat as quickly and safely as possible.

Second, hesitation – whether to gather information, inspect what is happening, or film events – increases the risk of harm.

Third, people need to remain agile in their decision-making and navigation while they are moving and be willing to adjust their movement as situations evolve and information becomes clearer. This means continuously scanning your surroundings and adjusting direction as new information becomes apparent, rather than stopping to reassess.

Finally, when moving with family or friends, travelling in a single-file formation – staying close in a back-to-back snake formation rather than holding hands side by side – benefits everyone by reducing congestion and improving flow.

Be prepared

The events in Sydney are horrific and they underline a difficult reality: preparedness for violent risks in crowded places needs to become more mainstream.

Crowded spaces will always remain vulnerable to deliberate violence, whether driven by terrorist intent or other motivations.

Messaging needs to reach more people to be evidence-based, nuanced, and widely accessible.

With several major public events and large mass gatherings approaching (including New Year’s Eve) it is more important than ever for people to be aware of these risks and remain vigilant.

The Conversation

Milad Haghani does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Intervene or run and hide: what should you do during public violence like the attacks at Bondi? – https://theconversation.com/intervene-or-run-and-hide-what-should-you-do-during-public-violence-like-the-attacks-at-bondi-272046

Changer les algorithmes des réseaux sociaux suffit à réduire l’hostilité politique

Source: The Conversation – in French – By Tiziano Piccardi, Assistant Professor of Computer Science, Johns Hopkins University

Des chercheurs ont développé un outil web open source permettant de réorganiser en temps réel les fils d’actualité de participants consentants sur X (anciennement Twitter). Bangla Press

Les fils d’actualité des réseaux sociaux sont conçus pour capter notre attention. Mais de simples ajustements dans les algorithmes qui les sous-tendent permettent d’apaiser le débat public.


Réduire la visibilité des contenus polarisants dans les fils d’actualité des réseaux sociaux peut diminuer de manière tangible l’hostilité partisane. Pour parvenir à cette conclusion, mes collègues et moi avons développé une méthode permettant de modifier le classement des publications dans les fils d’actualité, une opération jusque-là réservée aux seules plateformes sociales.

Le réajustement des fils pour limiter l’exposition aux publications exprimant des attitudes anti-démocratiques ou une animosité partisane a influencé à la fois les émotions des utilisateurs et leur perception des personnes ayant des opinions politiques opposées.

Je suis chercheur en informatique spécialisé dans l’informatique sociale, l’intelligence artificielle et le web. Comme seules les plateformes de réseaux sociaux peuvent modifier leurs algorithmes, nous avons développé et rendu disponible un outil web open source permettant de réorganiser en temps réel les fils d’actualité de participants consentants sur X, anciennement Twitter.

S’appuyant sur des théories des sciences sociales, nous avons utilisé un modèle de langage pour identifier les publications susceptibles de polariser les utilisateurs, par exemple celles prônant la violence politique ou l’emprisonnement des membres du parti adverse. Ces publications n’étaient pas supprimées ; elles étaient simplement classées plus bas dans le fil, obligeant les utilisateurs à défiler davantage pour les voir, ce qui a réduit leur exposition.

Nous avons mené cette expérience pendant dix jours, dans les semaines précédant l’élection présidentielle américaine de 2024. Nous avons constaté que limiter l’exposition aux contenus polarisants améliorait de manière mesurable ce que les participants pensaient des membres du parti adverse et réduisait leurs émotions négatives lorsqu’ils faisaient défiler leur fil d’actualité. Fait notable, ces effets étaient similaires quel que soit le parti politique, ce qui suggère que l’intervention bénéficie à tous les utilisateurs, indépendamment de leur affiliation.

Pourquoi c’est important

Une idée reçue veut que l’on doive choisir entre deux extrêmes : des algorithmes basés sur l’engagement ou des fils purement chronologiques. En réalité, il existe un large éventail d’approches intermédiaires, selon les objectifs pour lesquels elles sont optimisées.

Les algorithmes de fil d’actualité sont généralement conçus pour capter votre attention et ont donc un impact significatif sur vos attitudes, votre humeur et votre perception des autres. Il est donc urgent de disposer de cadres permettant à des chercheurs indépendants de tester de nouvelles approches dans des conditions réalistes.

Notre travail ouvre cette voie : il montre comment étudier et prototyper à grande échelle des algorithmes alternatifs, et démontre qu’avec les grands modèles de langage (LLM), les plateformes disposent enfin des moyens techniques pour détecter les contenus polarisants susceptibles d’influencer les attitudes démocratiques de leurs utilisateurs.

Quelles autres recherches sont menées dans ce domaine

Tester l’impact d’algorithmes alternatifs sur des plateformes actives est complexe, et le nombre de ces études n’a augmenté que récemment.

Par exemple, une collaboration récente entre des universitaires et Meta a montré que passer à un fil chronologique n’était pas suffisant pour réduire la polarisation. Un effort connexe, le Prosocial Ranking Challenge dirigé par des chercheurs de l’Université de Californie à Berkeley, explore des alternatives de classement sur plusieurs plateformes pour favoriser des résultats sociaux positifs.

Parallèlement, les progrès dans le développement des LLM permettent de mieux modéliser la façon dont les gens pensent, ressentent et interagissent. L’intérêt croît pour donner davantage de contrôle aux utilisateurs, en leur permettant de choisir les principes qui guident ce qu’ils voient dans leur fil – par exemple avec Alexandria, une bibliothèque des valeurs pluralistes ou le système de réorganisation de fil Bonsai. Les plateformes sociales, telles que Bluesky et X, s’orientent également dans cette direction.

Et après

Cette étude n’est qu’un premier pas vers la conception d’algorithmes conscients de leur impact social potentiel. De nombreuses questions restent ouvertes. Nous prévoyons d’étudier les effets à long terme de ces interventions et de tester de nouveaux objectifs de classement pour traiter d’autres risques liés au bien-être en ligne, comme la santé mentale et le sentiment de satisfaction. Les travaux futurs exploreront comment équilibrer plusieurs objectifs – contexte culturel, valeurs personnelles et contrôle par l’utilisateur – afin de créer des espaces en ligne favorisant des interactions sociales et civiques plus saines.

Retrouvez dans le Research Brief de The Conversation US une sélection travaux académiques en cours résumés par leurs auteurs.

The Conversation

Cette recherche a été partiellement financée par une subvention Hoffman-Yee du Stanford Institute for Human-Centered Artificial Intelligence.

ref. Changer les algorithmes des réseaux sociaux suffit à réduire l’hostilité politique – https://theconversation.com/changer-les-algorithmes-des-reseaux-sociaux-suffit-a-reduire-lhostilite-politique-271879

Airbus : D’où vient la panne qui a conduit l’entreprise à immobiliser des milliers d’avions ?

Source: The Conversation – in French – By David Monniaux, Chercheur en informatique, Centre national de la recherche scientifique (CNRS), Université Grenoble Alpes (UGA)

Fin octobre, Airbus demande aux compagnies aériennes de maintenir au sol 6 000 A320, à la suite d’un incident survenu en vol. L’entreprise l’explique par une mise à jour logicielle qui serait plus sensible aux rayonnements cosmiques. Si ce genre de problèmes existe, ils sont cependant détectés immédiatement en temps normal.


Le 30 octobre dernier, un vol de Cancún vers le New Jersey de la compagnie JetBlue a rapidement chuté en plein vol, avant que les pilotes puissent rétablir sa trajectoire, au bout de quelques secondes. Après un atterrissage en urgence en Floride, quelques passagers ont reçu des soins. À la suite de cet incident, Airbus a dû changer en urgence un logiciel de pilotage dans 6000 appareils de la famille A320. On a évoqué une « perturbation par une particule isolée » et le rôle des éruptions solaires. Qu’en est-il ?

Le palliatif proposé par Airbus est de faire revenir la version de certains logiciels de pilotage à une version antérieure. Sur les forums spécialisés, on spécule sur les causes techniques de ce dysfonctionnement, sur d’éventuelles fonctionnalités ajoutées entre ces deux versions, qui seraient insuffisamment protégées contre les effets que des rayonnements cosmiques peuvent avoir dans les composants informatiques. Il vaut mieux, toutefois, attendre le rapport officiel de l’enquête sur l’incident. En attendant, nous pouvons revenir sur l’explication invoquée et en quoi elle peut surprendre.

Les rayons cosmiques, ennemis de nos systèmes électroniques

La Terre est en permanence bombardée par des particules venant de l’espace – du Soleil ou de corps plus lointains. La plupart de ces particules sont déviées par le champ magnétique terrestre, une autre partie est absorbée ou transformée par l’atmosphère, mais certaines d’entre elles peuvent atteindre la surface terrestre. Elles forment une partie de la radioactivité naturelle, et sont plus abondantes en périodes d’éruption solaire.

Ces particules arrivant de l’espace ont des effets variés. Dans les régions polaires, moins protégées par le champ magnétique terrestre, elles provoquent de magnifiques aurores dans le ciel de nuit. On leur attribue également les flashes lumineux que les astronautes perçoivent dans leurs yeux. Comme il s’agit de rayonnements ionisants, les particules reçues peuvent avoir des effets sur la santé. Ainsi, Thomas Pesquet, en six mois de séjour dans la station spatiale internationale, a bien dépassé le quota annuel maximum d’exposition aux radiations permis pour un travailleur français.

Les particules issues de l’espace peuvent provoquer des dysfonctionnements dans les circuits électroniques. Par exemple, dans les années 1990, des composants électroniques de puissance, notamment conçus pour des trains, grillaient pour des raisons mystérieuses. Pour trier parmi les diverses hypothèses envisagées, on a essayé ces composants à la surface et dans une mine de sel, sous 140 mètres de roche : les problèmes ne se produisaient pas dans la mine ! Une fois le problème identifié, on a pu concevoir des composants et des modes d’utilisation beaucoup moins vulnérables.

Qu’est-ce qu’une perturbation par une particule isolée ?

Il est plus courant que, plutôt que de griller un composant, les particules modifient une donnée qui y est stockée. Les ordinateurs retiennent les informations sous forme de 0 et de 1, et une particule peut provoquer le basculement d’un 0 en 1 ou l’inverse, ce qu’on appelle une « perturbation par une particule isolée », ou single event upset en anglais.

En 2003, dans la commune belge de Schaerbeek, une liste a obtenu lors d’une élection un excès de précisément 4 096 voix, ce qui correspond exactement au basculement d’un 0 en 1 à l’intérieur d’un nombre écrit en binaire. Un tel basculement s’expliquerait par un single event upset.

Bien évidemment, et notamment pour les applications aérospatiales, particulièrement exposées, on a développé des parades. Certaines parades sont matérielles : par exemple, les mémoires vives peuvent être munies de codes correcteurs d’erreurs fondés sur du matériel spécifique pour coder et décoder très rapidement. C’est habituellement le cas de la mémoire vive des serveurs, les machines qui stockent des données dans les data centers, mais pas des ordinateurs de bureau ou des portables, du fait de leur coût. Ces codes permettent de corriger à coup sûr certaines erreurs et, dans d’autres cas, d’au moins signaler qu’il s’est passé quelque chose d’incorrect.

D’autres parades sont logicielles : procéder régulièrement à certaines vérifications, dupliquer des données à conserver sur de longues durées, éviter de garder trop longtemps des données dans des mémoires vulnérables, enregistrer certaines informations importantes d’une façon telle que le basculement d’un chiffre fournit une valeur absurde, donc détectable… Les possibilités sont nombreuses. Il y a par ailleurs des protocoles de test, y compris consistant à placer les circuits dans le faisceau d’un accélérateur de particules (grand instrument de sciences physiques).

Des commandes de vol électriques touchées par une panne

Voyons maintenant les implications pour l’aviation. La transmission des ordres des pilotes de ligne à leurs gouvernes, les parties mobiles de l’avion qui permettent de contrôler sa trajectoire, se faisait historiquement par des systèmes de câbles, de poulies ou de circuits hydrauliques assez compliqués. Il faut en plus assurer la redondance, c’est-à-dire prévoir plusieurs modes de transmission en cas de panne. Depuis les années 1980, les nouveaux modèles d’avions utilisent des commandes de vol électriques, c’est-à-dire que ces transmissions mécaniques sont remplacées par des câblages et des calculateurs électroniques.

Ces calculateurs diminuent la charge de pilotage (ils automatisent des actions que les pilotes devraient sinon faire manuellement) ainsi que la sécurité. Ils peuvent vérifier si les pilotes commandent une manœuvre qui sortirait l’avion du domaine des manœuvres qu’il peut faire en sécurité, et peuvent par exemple prévenir le décrochage. La panne qui a valu le rappel des avions Airbus concerne un calculateur appelé ELAC, qui commande les élévateurs et les ailerons, qui sont respectivement des gouvernes situées sur le stabilisateur arrière de l’avion et sur l’arrière du bout des ailes.

Les commandes de vol sont particulièrement sécurisées

Un point qui peut tout d’abord nous rassurer est que les problèmes de particules venues de l’espace se produisent plutôt à haute altitude, lorsqu’il y a moins d’atmosphère protectrice, alors que les étapes les plus dangereuses dans un vol sont plutôt le décollage et l’atterrissage. Ceci n’excuse cependant pas le dysfonctionnement constaté. Voyons un peu pourquoi ce problème n’aurait pas dû se produire.

Les calculateurs informatisés d’aviation civile sont classés, suivant les standards internationaux de l’aviation civile, en cinq niveaux de criticité, selon la sévérité des conséquences possibles d’un dysfonctionnement : du niveau A, où un dysfonctionnement peut provoquer une catastrophe aérienne, au niveau E, où il n’y aurait pas de conséquences pour la sécurité de l’aéronef. Les commandes de vol électriques sont du niveau A, elles sont donc soumises aux normes les plus sévères. On peut donc raisonnablement supposer que les commandes de vol des A320 sont équipées de mécanismes de détection et/ou de remédiation de dysfonctionnements, y compris dus aux radiations.

Sur les Airbus A330/A340, par exemple, il existe deux niveaux de commande de vol, primaires et secondaires. Il y a trois boîtiers de commandes primaires, et lorsqu’un boîtier a subi un problème, il est temporairement désactivé – ce n’est pas grave, car il en a deux autres pour le relayer. S’il y avait un problème générique sur les commandes primaires, on pourrait fonctionner avec les commandes secondaires, qui utilisent d’autres types de composants.

Chaque boîtier de commande de vol primaire consiste en deux calculateurs, l’un qui commande les gouvernes, l’autre qui surveille celui qui commande – ils doivent produire environ les mêmes résultats, sinon le système détecte que quelque chose ne va pas. Normalement, sur un tel système, en cas de dysfonctionnement d’un des calculateurs, le problème est rapidement détecté, le boîtier est désactivé, on passe sur un autre et une chute comme celle qui s’est passée en octobre est impossible.

Pourquoi les systèmes n’ont-ils pas détecté le problème ?

J’ai personnellement travaillé sur l’analyseur statique Astrée, un outil destiné à vérifier que des logiciels de contrôle ne se mettent jamais dans des situations d’erreur. Il a notamment été utilisé par Airbus sur ses commandes de vol électriques. J’ai eu l’occasion, au fil des années, d’apprécier le sérieux et la volonté de cette société de se doter d’approches à la pointe de l’état de l’art en matière de technologies logicielles, notamment de vérification formelle.

Plus récemment, j’ai également travaillé sur des contre-mesures à des erreurs de fonctionnement informatique provoquées volontairement à l’aide de rayonnements électromagnétiques. Il existe en effet la possibilité que des personnes induisent volontairement des pannes afin de les exploiter dans un but frauduleux, c’est donc nécessaire de travailler à prévenir ces tentatives pour des cartes à puce et d’autres équipements sécurisés.

L’hypothèse qu’il s’agisse bien d’une perturbation par une particule isolée reste plausible, mais il est surprenant qu’il ait fallu plusieurs secondes pour traiter le problème. Le système de sécurité du boîtier de commande affecté par l’irradiation aurait dû détecter l’incident, le boîtier touché aurait dû être automatiquement désactivé et l’avion basculé sur un autre, en secours. Il faut donc attendre d’autres éléments pour déterminer si c’est la bonne explication, et comment cela a pu alors se produire, ou si d’autres scénarios sont à envisager.

The Conversation

David Monniaux a reçu des financements de l’ANR (PEPR Cybersécurité). En tant que co-développeur de l’analyseur Astrée, il touche une prime d’intéressement à la valorisation de ce logiciel, donc à ses ventes.

ref. Airbus : D’où vient la panne qui a conduit l’entreprise à immobiliser des milliers d’avions ? – https://theconversation.com/airbus-dou-vient-la-panne-qui-a-conduit-lentreprise-a-immobiliser-des-milliers-davions-271579

Co-operatives empower people — and students need to know about them

Source: The Conversation – Canada – By Michelle Stack, Associate Professor, Department of Educational Studies, University of British Columbia

Canadian students are struggling. Many cannot afford housing, are struggling with mental health crises and increasing numbers don’t have enough money for food.

At the same time, universities are spending time and money chasing media-driven rankings that don’t offer tools for responding to these challenges or improve the quality of education or research in Canada.

But there’s a proven alternative that generates trillions in the global economy but remains largely invisible in higher education: co-operatives.

Canada’s 2025 budget mentions co-operative housing as a way to deal with the housing crisis, but co-ops go beyond housing. They could provide a place for students to practise democratic governance, to have a sense of community, to find dignified work and affordable food and housing — and to make research more accessible.

Co-operatives come in different forms, but they all sign on to key principles, many of which are similar to those espoused by educational institutions.

These include democratic member control, economic participation by members, autonomy and independence, voluntary and open membership, education and training and concern for the community.




Read more:
Housing co-ops could solve Canada’s housing affordability crisis


Thriving Canadian co-operatives

As university professors, we frequently hear from students who struggle to make ends meet. For many, the first time they learn about co-operatives is in our classes, yet Canada developed a robust system of co-operatives during other periods of hardship, including the Great Depression. Many of these co-ops continue to thrive today.

Some co-ops are huge and others are small. In 2023, it was estimated that the most profitable 300 co-operatives globally made a combined total of USD $2.79 trillion.

Vancity is an example of a financial co-op. It started in 1946 to provide loans for working-class people in the east side of Vancouver. Today, its total assets are $36 billion. Co-operatives in Canada hold $50.5 billion in assets and employ more than 100,000 people.

Co-op innovators are often people who have been excluded or marginalized from systems that measure an individual’s economic wealth with success and leave out their contributions to society and sustainability. For example,
In 2015, Solid State Communities Industries was founded. It’s well known for its success in building a solidarity economy in Surrey, B.C., and is led by racialized communities including students.

Mondragon co-operative

The co-operative Mondragon was founded in the 1950s in the town of the same name in the Basque region of Spain. It started by selling parrafin heaters and expanded to create a range of goods and services providing financial, education and health services, and has inspired many co-operative ventures, including in Winnipeg.




Read more:
The Mondragon model: how a Basque cooperative defied Spain’s economic crisis


Today, Mondragon employs more than 70,000 people and comprises 92 autonomous co-operatives, including a university with approximately 5,000 students who learn and have opportunities to practise democratic governance throughout their education. Students also have employment opportunities at a Mondragon co-operative.

Mondragon was key to the region during Spain’s recession and was able, through co-operation, to minimize harm caused by lost housing, jobs and cuts to social services. Research and innovation is central to the strength of Mondragon.

Co-operatives come in different forms

An often overlooked but important part of the co-operative movement is Rotating Savings and Credit Associations (ROSCAs).

One of the authors of this story, Caroline Shenaz Hossein, chronicles how these work in her book The Banker Ladies: Vanguards of Solidarity Economics and Community-Based Banks. In a ROSCA, a group of people contribute a set amount to a common fund at regular intervals, and each member takes turns receiving the total amount collected.




Read more:
Banking co-ops run by Black women have a longtime legacy of helping people


ROSCAs foster connection, community, trust, mutual support and financial inclusion. ROSCAS show that co-operative principles can thrive in formal organizations and everyday community life, including on university campuses.

Democratic decision-making

Co-operatives are not utopias — they are, after all, run by humans — but they do provide a structure for democratic decision-making, fairness and security. None of us is an island unto ourselves.

We need each other to ensure we all have the necessities of life — and the co-operative structures — to grapple with the existential threats we all face including climate change, the rise of disinformation and authoritarianism.

Co-operatives are a proven model for creating connection and providing affordable housing. They can also provide a means to make knowledge more freely available and to authenticate sources.

Canadian universities could choose to move away from competing over rankings to building a collaborative educational ecosystem that strengthens Canada’s ability to create and share knowledge.

As living co-operative labs, universities could connect economic capacity and democratic governance with well-being. That means providing all students opportunities to learn about co-ops and creating government and university policies that support the development of co-operatives on campuses.

The mention of co-ops in the 2025 budget is a start — but we need to do more to connect co-operatives to improving education, access to research and well-being across university campuses.

The Conversation

Caroline Shenaz Hossein receives funding from the Canada Research Chair program.

Michelle Stack does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. Co-operatives empower people — and students need to know about them – https://theconversation.com/co-operatives-empower-people-and-students-need-to-know-about-them-269345

What’s in a label? Rethinking how we talk about gender-based violence

Source: The Conversation – Canada – By Dianne Lalonde, PhD, Political Science, Western University

The words we use to describe gender-based violence (GBV), such as “victim,” “survivor” and “person with lived experience,” aren’t neutral. These labels are powerful. They can affirm dignity or reinforce stigma. They can mobilize movements or obscure systemic issues.

GBV can include sexual, physical, mental and economic abuse. Coercive control and manipulation in intimate partner relationships are an example, as is sexual assault, child marriages or technology-facilitated violence. And in Canada, GBV disproportionately impacts women and girls.




Read more:
Why Canada needs to recognize the crime of femicide — on Dec. 6 and beyond


As GBV evolves across digital and in-person contexts, the stakes of language are especially high.

Drawing on our research and practice, we explore what these labels mean, how they are used and the impact they have on people’s lives. Our aim is to support intentional language as part of the broader work of violence prevention, collective action and addressing harm.

Two starting points help anchor this discussion. The first is that when you are in direct contact with someone who has experienced GBV, follow their lead in how they describe their own experience. The second is to recognize that different communities use terms rooted in their own histories that demand our respect, not our translation.

What ‘victim’ reveals and what it distorts

“Victim” centres the harm experienced by individuals and the impacts it has had on their lives. It first gained prominence early in the women’s rights movement, when it was deployed to evoke sympathy and action. Today, it remains central to the legal system.

Research indicates that labelling someone as a victim frames them as someone in need of saving or protection rather than being recognized as knowledgeable and capable.

The label has also been criticized for reinforcing the “perfect victim” stereotype, suggesting that only those who appear innocent or socially respectable deserve empathy or justice. This stereotype often dismisses and blames certain groups, including Black women and women with disabilities who face compounded discrimination and disbelief.

Yet some individuals embrace the label of “victim” as an honest reflection of what they endured.

As American writer Danielle Campoamor states:

“As a victim of sexual assault, I am not a happy ending. I do not exist for others to feel better about a systemic problem.”

‘Survivor’ — the resilience story

“Survivor” foregrounds empowerment and resilience. People labelled as survivors are generally perceived more positively than people labelled as victims.

For men who have experienced sexual violence, “survivor” can offer a way to name harm in a context where acknowledging victimization is socially discouraged.

However, the label can shift attention away from aggressors and toward expectations that individuals demonstrate strength or recovery. Healing is not a linear process, and the label of “survivor” can create pressure that a person or community simply “get over it.” These expectations stigmatize people whose healing does not align with socially accepted ideas of recovery or “good” behaviour.

A focus on personal resilience can also reflect society’s discomfort with GBV by celebrating endurance rather than confronting the systems that create harm.

“Victim-survivor” has also been proposed as an umbrella term that aims to disrupt the victim/survivor binary, though it can reproduce some of the same pressures attached to both.

Does person-first language respect or obscure?

Person-first language, such as “individual who experienced GBV,” emerged from disability activism. It leads with the person rather than the label, offering an alternative to identity-first terms like “victim” or “survivor.”

Person-first language has been found to affirm dignity and emphasize that violence is only one part of a person’s story. It highlights individuality and complexity, reflecting the wide range of experiences within this group.

But person-first language can unintentionally portray the person’s identity as inherently negative or shameful. It can also individualize violence, obscuring the broader social and political structures that enable it.

Ultimately, the value of person-first language depends on how it is applied and whether it recognizes both personal experience and systemic accountability.

Navigating labels in real-life contexts

Every label captures something true while also missing something else.

The goal is not perfection or consistency; it is intention. Ask: What purpose does this label serve? How is it shaping assumptions about harm and agency? How might you capture what the label misses? Are you imposing one term universally or making space for the multiplicity of language people actually use? If you are speaking to or about an individual, what term do they prefer?

While we recognize that institutional settings often limit the language used, these questions remain useful because they help guide how those terms are applied, offering space to challenge harmful assumptions even when the terminology itself cannot change.

No single label can fully and accurately summarize experiences of violence. Labels often overlap, shift with context and evolve over time.

What matters most is using language that reflects care and respect. Our words should neither confine people to their experiences of violence nor erase the realities of that harm. Intentional language is one way we move closer to a world where GBV is actively named and dismantled.

The Conversation

Dianne Lalonde is affiliated with the Federation for the Humanities and Social Sciences.

Sue O’Neill received funding from the Social Sciences and Humanities Research Council. Sue O’Neill is on the board of directors for Bryony House, a crisis GBV shelter in Halifax, Nova Scotia.

ref. What’s in a label? Rethinking how we talk about gender-based violence – https://theconversation.com/whats-in-a-label-rethinking-how-we-talk-about-gender-based-violence-270650