Generative agents have been increasingly used to simulate human behaviour in silico, driven by large language models (LLMs). These simulacra serve as sandboxes for studying human behaviour without compromising privacy or safety. However, it remains unclear whether such agents can truly represent real individuals. This work compares survey data from the Understanding America Study (UAS) on healthcare decision-making with simulated responses from generative agents. Using demographic-based prompt engineering, we create digital twins of survey respondents and analyse how well different LLMs reproduce real-world behaviours. Our findings show that some LLMs fail to reflect realistic decision-making, such as predicting universal vaccine acceptance. However, Llama 3 captures variations across race and Income more accurately but also introduces biases not present in the UAS data. This study highlights the potential of generative agents for behavioural research while underscoring the risks of bias from both LLMs and prompting strategies.

Variational quantum algorithms (VQAs) are promising hybrid quantum-classical methods designed to leverage the computational advantages of quantum computing while mitigating the limitations of current noisy intermediate-scale quantum (NISQ) hardware. Although VQAs have been demonstrated as proofs of concept, their practical utility in solving real-world problems -- and whether quantum-inspired classical algorithms can match their performance -- remains an open question. We present a novel application of the variational quantum linear solver (VQLS) and its classical neural quantum states-based counterpart, the variational neural linear solver (VNLS), as key components within a minimum map Newton solver for a complementarity-based rigid body contact model. We demonstrate using the VNLS that our solver accurately simulates the dynamics of rigid spherical bodies during collision events. These results suggest that quantum and quantum-inspired linear algebra algorithms can serve as viable alternatives to standard linear algebra solvers for modeling certain physical systems.

The Trump Administration quietly revealed it has futuristic technologies that literally bend time during a speech on'the golden age of American innovation.' The director of the White House Office of Science and Technology Policy, Michael Kratsios, declared that the US currently has the ability to'manipulate time and space' and'leave distance annihilated.' Kratsios made the bold statement on Monday during the Endless Frontiers Retreat, a scientific conference in Texas focused on promoting US technological innovations to maintain global competitiveness. The rest of the director's speech touched on American breakthroughs of the past and undoing Biden-era policies that the Trump Administration claims stifled innovation - adding that the regulatory process on new tech has been a burden since the 1970s. Kratsios actually referenced this again at the end of his speech, saying that Americans will soon have the choice to'craft new technologies and give themselves to scientific discoveries that will bend time and space.'

Chinese authorities have banned automakers from using terms such as "smart driving" and "autonomous driving" for ads in the country, according to Reuters. The Ministry of Industry and Information Technology has tightened its rules for advertising driving assistance features following a fatal crash involving a Xiaomi SUV7 (pictured above), which raised concerns about the technology's safety. Based on Xiaomi's report, the vehicle's driving assistance mode was switched on when the vehicle was approaching a construction zone, but the driver took control right before the SUV collided with a concrete barrier. The electric vehicle went up in flames, with the accident claiming three lives. Back in 2022, the California DMV accused Tesla of falsely portraying its vehicles as fully autonomous based on the language it used on its website, though that didn't lead to a ban on advertising terms. Chinese authorities announced the new rule at a meeting attended by 60 representatives from the automobile industry.

The only office within the US State Department that monitors foreign disinformation is to be eliminated, according to US Secretary of State Marco Rubio, confirming reporting by MIT Technology Review. The Counter Foreign Information Manipulation and Interference (R/FIMI) Hub is a small office in the State Department's Office of Public Diplomacy that tracks and counters foreign disinformation campaigns. The culling of the office leaves the State Department without a way to actively counter the increasingly sophisticated disinformation campaigns from foreign governments like those of Russia, Iran, and China. What is vibe coding, exactly? When OpenAI cofounder Andrej Karpathy excitedly took to X back in February to post about his new hobby, he probably had no idea he was about to coin a phrase that encapsulated an entire movement steadily gaining momentum across the world.

The chief executive of the American chip maker Nvidia visited Beijing on Thursday, days after the US issued fresh restrictions on sales of the only AI chip it was still allowed to sell to China. Jensen Huang's surprise visit was on the invitation of a trade organisation, according to a social media account affiliated with state media. The official broadcaster China Central Television said Huang met Ren Hongbin, the head of the China Council for the Promotion of International Trade, where he said he hopes "to continue to cooperate with China". China Daily, the ruling Communist party's official English-language outlet, published a photo of Huang in the capital, saying the trip came "three months after pledging to continue cooperation with #China during his last visit". It added the hashtag #OpportunityChina, which it has previously used in posts promoting US-China exports.

American police departments near the United States-Mexico border are paying hundreds of thousands of dollars for an unproven and secretive technology that uses AI-generated online personas designed to interact with and collect intelligence on "college protesters," "radicalized" political activists, and suspected drug and human traffickers, according to internal documents, contracts, and communications that 404 Media obtained via public records requests. This article is copublished in partnership with 404 Media. Massive Blue, the New York–based company that is selling police departments this technology, calls its product Overwatch, which it markets as an "AI-powered force multiplier for public safety" that "deploys lifelike virtual agents, which infiltrate and engage criminal networks across various channels." According to a presentation obtained by 404 Media, Massive Blue is offering cops these virtual personas that can be deployed across the internet with the express purpose of interacting with suspects over text messages and social media. The technology--which as of last summer had not led to any known arrests--demonstrates the types of social media monitoring and undercover tools private companies are pitching to police and border agents.

This highly scalable approach may finally open the skies to a host of commercial drone applications that have yet to materialize. Amazon Prime Air launched in 2022 but was put on hold after crashes at a testing facility, for example. On any given day, only 8,500 or so unmanned aircraft fly in US airspace, the vast majority of which are used for recreational purposes rather than for services like search and rescue missions, real estate inspections, video surveillance, or farmland surveys. One obstacle to wider use has been concern over possible midair drone-to-drone collisions. This prevents most collisions but also most use cases, such as delivering medication to a patient's doorstep or dispatching a police drone to an active crime scene so first responders can better prepare before arriving.

Ukraine has reported dozens of civilian deaths from Russian attacks over the past week, including three killed in a late-night assault on Wednesday in the southeastern city of Dnipro. A child was among the victims of the drone attack, which came hours before high-stakes meetings in Paris due to take place later on Thursday, during which United States Secretary of State Marco Rubio and special envoy to the Middle East Steve Witkoff are to meet French President Emmanuel Macron and other European officials to discuss the conflict. Ukraine's defence and foreign ministers, as well as President Volodymyr Zelenskyy's chief of staff, are also in the French capital for talks with US and European Union delegations, though Kyiv's delegation has not specified who it plans to meet. But as Moscow's self-imposed 30-day ceasefire on energy infrastructure approached its close, talks to achieve a broader ceasefire so far have showed little sign of progress. Russia has stuck to its hardline positions while accusing Ukraine of violating the energy ceasefire, to which Kyiv never agreed.

A large-scale Russian drone attack in the southeastern Ukrainian city of Dnipro has killed three people, including a young girl, according to the regional governor, hours before officials from the United States, Europe and Ukraine gather in Paris to discuss the conflict. Dnipropetrovsk Governor Serhiy Lysak said the attacks that also injured tens of people came late on Wednesday, triggering multiple fires and damaging a dozen apartment buildings. A student residence, an educational institution and a food processing plant were also damaged, Dnipro Mayor Borys Filatov added. Photos posted online showed raging fires, burned-out vehicles and buildings with shattered windows and scorched facades, as emergency crews worked through the night. Sixteen of the injured are in hospital, one of them in critical condition, according to Lysak.