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In August 2025, The Lancet Gastroenterology & Hepatology published a finding that travelled the world: at four Polish centres, endoscopists who had spent months working with AI-assisted detection found fewer adenomas when performing a colonoscopy without it. The rate fell from 28.4% to 22.4%. Four months later, a Norwegian prospective trial with 5,013 colonoscopies and three phases found exactly nothing: neither loss nor gain of skill when the tool was withdrawn. And a third study, over three years, found sustained improvement. This article sorts out a scientific controversy that is live right now, and explains what separates the three designs.The…

Meta-analyses consistently indicate that mental health chatbots alleviate symptoms of both anxiety and depression. Although an effect size hovering around 0.3 remains modest within this academic field, it is nonetheless tangible. The core issue surfaces upon reviewing individual clinical trials one by one. Specifically, when a specialized therapy application was pitted against standard ChatGPT, the dedicated app failed to surpass the generic bot across any evaluated metric. Meanwhile, a six-week study tracking 540 participants revealed that the artificial intelligence variant boosted interaction frequency by 2.4 times and engagement duration by 3.8 times, yielding symptom reduction comparable to traditional static workbooks.…

The object, 2026 ED138, could be one of the largest bodies known in the outer solar system, but its size and status still need confirming.The NSF–DOE Vera C. Rubin Observatory has found its first candidate dwarf planet: an icy body orbiting the Sun beyond Neptune, currently about 46 times farther from the Sun than Earth is. The object, provisionally designated 2026 ED138, was announced on October 27 by the observatory and the International Astronomical Union's Minor Planet Center.Its exact dimensions remain undetermined. Should the highest projections prove accurate, this object will count as one of the most massive entities ever…