Your Spine Answers 0.3 Seconds Before You Do

Step on something sharp and your leg moves before the pain even exists. Meet the part of you that decides before you do: the butterfly of grey matter folded into your spinal cord - the cord that computes. Chapters: 00:00 The race - your leg has already moved 00:14 A butterfly folded into your spine 00:29 White is cabling. The butterfly is a processor 01:04 The reflex you cannot veto 01:49 The stopwatch race: 0.10 s vs 0.38 s 02:14 Pain is negotiated - the gate (1965) 03:01 The wrong address: heart attacks and a suspect witness 04:07 Cut one wire: Brown-Séquard's puzzle 04:54 The cord that learns pain 05:41 Hacking it: a digital bridge - and honest numbers 06:30 Not a cable. A computer.