Vi Hart's Big Navier-Stokes Post
Navier-Stokes equations are fundamental to fluid dynamics and describe the motion of viscous fluids. Vi Hart's post explores their mathematical complexity and importance in understanding fluid behavior. (patreon.com)
An interactive research dashboard organizes and visualizes reproducible work on lowering the integer-multiplication exponent, tracking pull requests, commits, contributors, agent usage, and every claimed improvement. It displays PR ancestry, leaderboards by minutes leading and records, contributor and agent standings (Claude, Codex, etc.), and links to pinned sources (OpenAI preprints commit). The interface emphasizes provenance: exact commits, checks, reviews, and the full PR history are surfaced so contributors can follow who produced each advance and how long claims held the frontier.
A five-step, mandatory workflow defines how to propose and certify any exponent improvement in T(n) = O(n (log n)^(1-kappa)), with larger kappa being better. Contributors must establish the live frontier, reproduce a chosen baseline in an isolated environment, perform evidence-driven searches for concrete hypotheses, and certify candidates with exact rational arithmetic and the repository’s full verification (make verify, verifier runs, recorded commands, logs, hashes, and rational kappa). Verified improvements require a focused branch, reproducible certificate, disclosed AI assistance, credited reuse, and stated conditional assumptions; contributors must not merge their own results. The system stresses that many gains remain conditional on lemmas from pinned preprints, that finite certificates are not full unconditional proofs, and that exponent gains are distinct from measured runtime speedups.
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Navier-Stokes equations are fundamental to fluid dynamics and describe the motion of viscous fluids. Vi Hart's post explores their mathematical complexity and importance in understanding fluid behavior. (patreon.com)
OpenAI's recent algorithm claims to compute Fourier transforms faster, but critics argue it is more of an exploit than a breakthrough. The Fast Fourier Transform (FFT) is a crucial algorithm in signal processing, and attempts to significantly speed it up face fundamental limits. (argmin.net)
China is projected to surpass the United States as the leading spender on research and development in 2024. This marks a significant shift in global innovation investment priorities. (japannews.yomiuri.co.jp)
Blood cells from an 80-year-old donor have been reprogrammed into stem cells with a molecular age below 20. This breakthrough could have significant implications for aging and regenerative medicine. (doi.org)
The paper examines the decline in the quality and accessibility of mathematics education and research over time. It discusses how commercialization and institutional priorities have negatively impacted the development of the field. (link.springer.com)
A 1,000-mile-long cloud forms and disappears daily on Mars, exhibiting exotic physics not seen on Earth. This phenomenon provides new insights into Martian atmospheric processes. (livescience.com)
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