The runtime is the city: what software can learn from how London actually moves

Tube networks have versioning. Bus routes have rollback. The pavement under your feet is the most successful long-running process in human history — patched daily, versioned in stone, with a deployment cadence measured in centuries.

A long piece on what infrastructure thinking actually looks like when you stop drawing boxes and start watching people walk; on what software has quietly stolen from urbanism without noticing; and on a few specific things London does, every morning, that I think the next generation of distributed systems should be embarrassed not to be doing yet.