Writing

Essays on software, AI and building companies, plus the odd hardware project.

Sept 2026· Running Get faster by running slower: what two VO2 max tests taught me about heart rate zones The most useful number from my VO2 max test was not my VO2 max. It was the heart rate at which my breathing first changed.
May 2026· Strategy The 2% About half of workers use AI daily. Only 2% have re-engineered how the work itself gets done. The other 98% are using AI to type faster.
Nov 2025· Philosophy Nature's Razor: Why Simplicity Always Wins Nature is lazy—and that's exactly why it works. A look at the law governing everything from light paths to software architecture.
May 2025· Hardware Bootleg Starlink: connecting family properties in rural Australia A long-haul flight, $0.30/m fibre from AliExpress, and a self-described 'old dog' running 1.5 km of cable through the bush — to fix the video calls.