Grady Booch says AI–brain “convergent evolution” is only an amusing parallel
Grady_Booch · x · 2026-07-23
Grady Booch criticizes a paper claiming “convergent evolution” between AI models and brains, arguing that the two systems evolved under entirely different reward functions and external pressures. He says the result is, at best, an amusing parallel—not a meaningful equivalence.
He is replying to a Substack post that frames the paper as a mathematical theory of convergence via contravariance and “zippering theorems.”
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