Those glowing threads on the last page are drawn between numbers, not words. Page 3 showed you forty-eight of these dials standing in for the model's parameters. A real model has billions — click one to zoom in and watch it actually get set.
Dial #1, zoomed in
Error on the training example
Training nudges this dial toward the target — a little at a time, across millions of examples.
So what
Every one of billions of dials went through this same nudge, over and over — then froze the moment the model was released, exactly like page 5's cutoff.