Standard Measures Grow the Collective Brain

And why the metric system wasn't immediately adopted

When you first craft things, you might measure with body parts or that reliable rock in your workspace.

This fails at scale.

An English inventor asks for a five-inch cylinder from France, and the broker wonders: Beauce pouce or Pernois pouce?

So you seek common ground.

Yet even pendulum swings differ by latitude - why Britain and America initially rejected the metric system.

New standards need simple verification for adopters.