https://sparsenotes.com/tags/infrastructure/ Recent content in infrastructure on Sparse Notes https://sparsenotes.com/images/og-default.png https://sparsenotes.com/images/og-default.png Hugo -- gohugo.io Sat, 23 May 2026 00:00:00 +0000 https://sparsenotes.com/posts/2026/05/jane-street-ai-datacenter/ Sat, 23 May 2026 00:00:00 +0000 https://sparsenotes.com/posts/2026/05/jane-street-ai-datacenter/ Notes on Dwarkesh Patel's tour of Jane Street's Texas training cluster with Ron Minsky and Daniel Pontecorvo — 140 kW liquid-cooled GB300 racks, retrofit chillers, leak ropes, bus-bar power balancing, 8,000 km of fiber, and why opportunity cost dominates.