The 0.1% Rule: How Jane Street Builds Code That Runs 100x Faster by Doing Almost Nothing
Jane Street’s Incremental framework doesn’t just optimize code — it changes the fundamental question you ask. Instead of ‘how can I make this computation faster?’, it asks ‘what computation actually needs to happen?’ The result is a system that runs 100x faster by doing almost nothing. The real lesson? Most performance problems aren’t about speed — they’re about scope.