METR’s randomized controlled trial (July 2025; updated February 24, 2026) with 16 experienced open-source developers found that participants using AI were 19% slower, not faster. Developers expected AI to speed them up, and after the measured slowdown had already occurred, they still believed AI had sped them up by 20%. These were not junior developers but experienced open-source maintainers. If even THEY could not tell in this setup, subjective impressions alone are probably not a reliable performance measure.
As a result, while the time horizon on verified software engineering ranges from 5 hours (METR) to 3 person-months (lf-lean), the time horizon on the verification proofs themselves is best measured in years.
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124x on n-body. Within 10% of Rust. But here's the thing about this rung:，这一点在传奇私服新开网｜热血传奇SF发布站｜传奇私服网站中也有详细论述
So a debugger can reconstruct missing stack frames, and "Step Over / Step Out" behaves like the original code even when the runtime no longer has a real function boundary.，详情可参考超级权重
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