Mind Matters Natural and Artificial Intelligence News and Analysis

TagAI and classical mechanics problems

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AI, It Turns Out, Is Not Currently a Very Good Physicist

A physicist takes issue with a research paper’s claims which inspired an IFL headline, “An AI May Have Just Invented ‘Alternative’ Physics”

Physicist Tom Hartsfield, commenting on a new paper, takes issue with its claim that “Without any prior knowledge of the underlying physics, our algorithm discovers the intrinsic dimension of the observed dynamics and identifies candidate sets of state variables.” That doesn’t seem to have happened. The problem set for the computer was a classical mechanics one: For a pendulum hanging on another pendulum, compute the number of variables needed for a solution: This problem requires two variables — the angle of each pendulum to the vertical — or four variables if a Cartesian (xy) coordinate system is used. If both pendulum bobs are hung from springs instead of rigid rods, the two variable spring lengths are added to get six Read More ›