AI-written Community Note debunks brain injury lens study: only 14 of 41 participants analyzed
NathanpmYoung · x · 2026-10-27
Nathan Young cites a Community Note from the ACX book review contest (hosted by Scott Alexander) flagging serious sample problems in the paper behind The Ghost In My Brain.
- The paper is a preliminary conference paper analyzing only 14 of 41 recruited participants
- Those 14 were healthy students with no brain injury, so it never tested whether the lenses help concussion patients; only 3 of the 41 had a brain injury and none were in the analysis
- The note, labeled "Written by AI," is currently rated helpful (4 yes votes)
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