The CPU Isn’t a Brain. It’s a Miracle of Abstraction.
The CPU is the most underrated human achievement. It’s built from sand, purified to one part per billion, etched with light so precise it can draw lines three atoms wide, and designed by thousands of people who each understand only their own layer. No single person understands the whole chip — and that’s exactly why it works. This is the power of hierarchical abstraction, the secret behind all great human collaboration.