A fundamental problem in cognitive neuroscience is how humans make decisions, act, and behave in relation to other humans. Here we adopt the hypothesis that when we are in an interactive social setting, our brains perform Bayesian inference of the intentions and cooperativeness of others using probabilistic representations. We employ the framework of partially observable Markov decision processes (POMDPs) to model human decision making in a social context, focusing specifically on the volunteer's dilemma in a version of the classic Public Goods Game. We show that the POMDP model explains both the behavior of subjects as well as neural activity recorded using fMRI during the game. The decisions of subjects can be modeled across all trials using two interpretable parameters.

Age: Ted started in 1984. And has Ted been talking ever since? I know, and they do the inspirational online talks. Correct, under the slogan "Ideas change everything". She was talking at the Hay festival, in Wales.

Texas Rep. Jasmine Crockett attacked President Donald Trump's West Point address on MSNBC and called it proof of his unfitness as commander in chief. Rep. Jasmine Crockett, D-Texas, appears to be leaning in on her rising political stardom this week, briefly sharing what appeared to be a fan-made song that referred to the Democratic firebrand as the "leader of the future." "Jasmine Crockett, she rises with the dawn. Fighting for justice, her light will never be gone," the song went. Infectious with passion, she'll never bow down.

At Springwood library in the Blue Mountains, a librarian appears with a cat carrier in each hand. About 30 children gather around in a semicircle. Inside each carrier, a pair of beaming, sci-fi-like eyes peer out at the expectant crowd. "That is the funniest thing ever," one child says. The preschoolers have just finished reading The Truck Cat by Deborah Frenkel and Danny Snell for the annual National Simultaneous Storytime.

Gabe Newell, co-founder and CEO of Valve, has been working on a new brain-computer interface project through his Starfish Neuroscience company for several years. The company just announced that it plans to launch its first brain chip by the end of 2025, reports The Verge. This chip isn't a complete implant solution, but a specially designed "electrophysiological" component that can both read and stimulate brain activity. Unlike competitors, such as Elon Musk's Neuralink, Starfish aims to create a less invasive solution that doesn't require a battery and can reach multiple brain regions at once using wireless energy transfer. Starfish is also developing technology to treat neurological disorders such as depression and bipolar disorder, as well as a method to destroy tumors using targeted heat.

When people think about AI, they often think about models that run in the cloud like ChatGPT or Google Gemini. But there's an incredibly simple way of running local AI on your PC that Microsoft just implemented. Microsoft announced Microsoft Foundry Local this past week at its Build conference. It's basically a command line tool that runs LLMs locally on your machine. Although it's initially targeted at developers, it's one of the easiest ways of trying out local AI simply because it does everything for you.

This week in tech: Apple struggles on multiple fronts, OpenAI grows increasingly ambitious, and Trump helps some of his fans lose money on cryptocurrency. Long dominant and unassailable, Apple is showing signs of weakness. The CEO, Tim Cook, can't tame Donald Trump's threats of tariffs that would spike the price of an iPhone; Apple's AI offerings pale against its competitors; and the company can't win a Fortnite match – or a single battle in its legal war with Epic Games – to save its life. On Friday, the president threatened to levy a 25% tariff on any iPhone not made in the US. Trump said in the post: "I have long ago informed Tim Cook of Apple that I expect their iPhones that will be sold in the United States of America will be manufactured and built in the United States, not India, or anyplace else. If that is not the case, a Tariff of at least 25% must be paid by Apple to the US."

Imagine your phone rings and the voice on the other end sounds just like your boss, a close friend, or even a government official. They urgently ask for sensitive information, except it's not really them. It's a deepfake, powered by AI, and you're the target of a sophisticated scam. These kinds of attacks are happening right now, and they're getting more convincing every day. That's the warning sounded by the 2025 AI Security Report, unveiled at the RSA Conference (RSAC), one of the world's biggest gatherings for cybersecurity experts, companies, and law enforcement.

Want to feel like you have a new laptop without shelling out hundreds of dollars? A lifetime license to this latest operating system is now just 14.97 (reg. Whoever said you can't teach an old dog new tricks never saw Windows 11 Pro in action. This operating system was made with the modern professional in mind, so it's ready to give your dusty device a new lease on life with improved productivity features. Take advantage of improved voice typing, seamless redocking, snap layouts, and a more powerful search experience with Windows 11 Pro.

Russia and Ukraine have launched a wave of drone attacks against each other overnight, even as Moscow claimed it was finalising a peace proposal to end the war. Ukrainian air force officials said on Tuesday that Russia deployed 60 drones across multiple regions through the night, injuring 10 people. Kyiv's air defences intercepted 43 of them – 35 were shot down while eight were diverted using electronic warfare systems. In Dnipropetrovsk, central Ukraine, Governor Serhiy Lysak reported damage to residential properties and an agricultural site after Russian drones led to fires during the night. In Kherson, a southern city frequently hit by Russian strikes, a drone attack on Tuesday morning wounded a 59-year-old man and six municipal workers, officials said.