A meme hides another NanoGPT micro-optimization in the XSA update path
burny_tech · x · 2026-07-28
A GitHub-linked post jokes that yet another “20 trillion counterexamples” have been beaten by The Book of Proofs, but the actual thread is about a code-level change in modded-nanogpt. The highlighted diff replaces a normalized projection with a dot-product over squared norms, simplifying the XSA update path. The meme framing aside, the substantive point is another micro-optimization in an already heavily tuned training codebase.
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