I'm sorry, but you still have to think

DHH rewrote Campfire Once from Ruby on Rails into multiple languages (Rust, Elixir, Go) using AI agents without reading the resulting code himself, revealing significant problems with the approach. The rewrites contain numerous non-functional differences—such as inconsistent backwards compatibility and suboptimal performance implementations—demonstrating that AI-generated code requires specific prompts and human code review, and that developers cannot simply stop thinking about architectural decisions and trade-offs.