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An experiment in formalized textbooks that implements Chapter 1 of Structure and Interpretation of Classical Mechanics in TypeScript and Jax, with code-math alignment and a simulator.
Apple-π is a benchmark that evaluates video generation models on their ability to reason about physical laws through a three-stage protocol: perception, formulation, deduction. It includes 400 videos covering classical mechanics tasks and reveals current models fall short of reliable law-grounded world simulation.