D1 · The Perceptron
The Cell That Fires
Describe what a brain cell decides, and write the 1943 rule that copies that decision.
Inside your head, about 86 billion nerve cells each do one small job. A cell listens to its neighbors. Some of them push it toward firing, and some push it away. Past a certain level of push it sends a pulse, and below it stays quiet. Listen, add, decide.