Simon Willison’s Weblog

The Sea Forts (via) History and stunning photos of British World War II sea forts (kind of steel castles on stilts) seven and a half miles off the coast of Kent.

Posted 27th April 2008 at 10:51 pm

Recent articles

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025
Useful patterns for building HTML tools - 10th December 2025

history 41 photography 20 seaforts 1 wwii 1

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe