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[P] Nobody Invented Rainbow From Scratch — an interactive tutorial on the value-based lineage

This story is from 2026-08-19. It is preserved in the archive; the latest stories are on the live feed.

Previously, I posted Volume 1 of this series (the policy-gradient lineage, REINFORCE → PPO → GRPO). This is Volume 2, same format, for the value-based family. The framing is the same: every algorithm exists because the previous one had one specific, painful failure, and the fix is easier to remembe…

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  1. 2026-08-19 16:08 · r/machinelearningnews
    [P] Nobody Invented Rainbow From Scratch — an interactive tutorial on the value-based lineage

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