Biology has no compiler

Agentic AI arrived in the lab this year on the strength of what it did for software. But what makes coding agents work, a compiler and a test suite that tell you deterministically whether the work is right, has no equivalent in biological research. Weekly Papers #3 on why the answer to trustworthy AI in life science isn't a bigger agent, more agents, or more skills, but a deterministic substrate that audits and traces every action, whether human, AI, or programmatic, in a language built for science.