LESSON 1 · Math Hacks for Decisions
The Number That Controls You
The first price you see anchors your sense of value. A $500 watch next to a $10,000 watch feels cheap — even though $500 is a lot of money on its own. This is not a flaw in your reasoning; it is a documented cognitive bias that retailers exploit constantly.

So the move is simple: walk in already knowing your number. Whether it's a watch, a salary, or a used car, decide what fair value looks like before anyone quotes you a price. The first figure you hear loses its power the moment you arrive with your own anchor.