Simon Willison’s Weblog

Seeing Metaclasses Clearly (via) Metaclasses in Ruby—but no cartoons :(

Posted 18th April 2005 at 6:35 pm

Recent articles

Phoenix.new is Fly's entry into the prompt-driven app development space - 23rd June 2025
Trying out the new Gemini 2.5 model family - 17th June 2025
The lethal trifecta for AI agents: private data, untrusted content, and external communication - 16th June 2025

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