The Flywheel Effect

Imagine pushing a stone wheel ten feet tall. You push. Nothing happens. You push again. It moves an inch. Hours pass. One full rotation. Then a second, faster. Then a tenth. By the hundredth, the wheel's own momentum does the work. No single push caused the breakthrough. Every push built on the one before. This is how Amazon grew from a bookstore into a six hundred billion dollar machine. Jeff Bezos sketched it on a napkin in two thousand and one. Lower prices attract more customers. More customers attract more sellers. More sellers increase selection. More selection attracts more customers. More customers create volume. Volume lowers costs. Lower costs fund lower prices. And the wheel turns again. Each rotation makes the next one easier. Twenty five years later, the wheel has not stopped. Costco runs the same physics with membership fees. Sixty million members pay to shop there. The fees fund operations so Costco can cap product margins at fourteen percent — half what supermarkets charge.