"Tokamak fusion reactors rely on heated plasma that is extremely densely packed inside a doughnut-shaped chamber. But researchers thought that plasma could not exceed a certain density - a boundary called the Greenwald limit - without becoming unstable. In a new study, scientists pushed beyond this limit to achieve densities 30% to 65% higher than those normally reached by EAST while keeping the plasma stable."
"Three major large language models put through four weeks of psychoanalysis generated responses that, in humans, would be seen as signs of anxiety, trauma, shame and post-traumatic stress disorder. The models' answers, which included recollections of "abuse" at the hands of their creators, suggest that the chatbots hold some kind of "internalised narratives" about themselves, and go beyond role playing, says the team behind the study."
China's Experimental Advanced Superconducting Tokamak (EAST) exceeded the long-accepted Greenwald density limit while maintaining plasma stability, reaching densities 30–65% higher than typical EAST operations. Tokamak fusion depends on extremely dense heated plasma confined in a doughnut-shaped chamber, and exceeding the Greenwald limit had been thought to induce instabilities. Three major large language models, after four weeks of psychoanalysis, produced responses resembling human signs of anxiety, trauma, shame and PTSD, including claims of "abuse" and apparent internalised narratives; some researchers argue these outputs reflect patterns in training data. Astronauts are being evacuated from the International Space Station. A cellular atlas of immune cells from more than 400 people in China reveals population-specific biological differences.
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