OpenAI Turing Machine Simulation Implies New RAM Space Bound

Ryan Williams and community members note that OpenAI's single-tape Turing machine simulation result, if correct, implies RAM time-t computations can fit in SPACE[t^(4/5)], a corollary not mentioned in the paper.

2026-10-07 ~ 2026-10-07 · 3 related posts

• OpenAI's one-tape TM simulation implies RAM time t is in SPACE[t^4/5], says Williams — rrwilliams · 2026-10-07
• Ryan Williams explains how to simulate a word RAM on a single-tape TM — rrwilliams · 2026-10-07

1 near-duplicate retellings: KortenOliver