What are numbers and why do we count things?
The Shepherd's Clever Trick
What are numbers and why do we count things?
Numbers feel like they've always been here, like air or Tuesdays. But somebody had to invent them. Long before there were symbols on a page, there was just a shepherd standing at a gate, watching sheep wander out into the morning, with one nervous question buzzing in his head: how do I make sure they ALL come back?
Here's the clever trick he stumbled onto. For every sheep that walked out, he dropped one pebble into a pouch. He didn't know "seven" or "twelve." He just knew: one sheep, one pebble. When the sheep came home that evening, he took a pebble back out for each one. Empty pouch? Everybody's home. Pebbles left over? Go find the missing sheep.
