# Unpopular Ideas That Became Billion-Dollar Businesses

**Author:** Y Combinator
**Type:** Video
**URL:** https://www.ycombinator.com/library/N0-unpopular-ideas-that-became-billion-dollar-businesses
**YouTube ID:** Hm-ZIiwiN1o

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Nine out of ten people might tell you you're crazy. The tenth might see what you see.

Garry, Harj, Jared, and Diana talk about contrarian bets — the ideas that look impossible until they work. From Uber and
Coinbase to DoorDash and Flock Safety, they share how founders find opportunity where others see dead ends.

