September 2025 News

September 2025 Gwern.net newsletter with links on TODO

in progress certainty: log importance: 0 bibliography

September 2025’s Gwern.net newsletter is now out; previous, August 2025 (archives). This is a collation of links and summary of major changes, overlapping with my Changelog; brought to you by my donors on Patreon.

Writings

Everything Is Heritable:

Recent Evolution:

Engineering:

“Adventures in State Space”, 2swap 2025 (visualizing a hard sliding-block puzzle’s game tree as a graph to understand why it’s hard, its symmetries, and the qualitative nature of its strategies; good intuition building for the idea of ‘state spaces’ in planning & reinforcement learning)