How do we measure things?
The Shared Ruler
How do we measure things?
You wake up one morning and everything's gone weird. Your shoes feel too small. Your friend says she's taller than you (she's not). Breakfast takes "five minutes" but feels like an hour. The milk carton says "one gallon" but what does that even mean? Without measuring, the world becomes a giant argument where everyone's guessing.
Measuring is how we agree on reality. Instead of saying "pretty far" or "super heavy" or "really hot" — which mean different things to different people — we pick a standard unit everyone uses. A meter is a meter whether you're in Tokyo or Toronto. Once we share the ruler, we share the truth.
