How a 34-year-old former bodybuilder built one of the most highly valued startups in the world

Mike Nudelman/Business Insider Brian Chesky didn't know much about tech before starting Airbnb. The 34-year-old CEO majored in industrial design in college and dabbled in hockey and bodybuilding in his 20s. But now, he's grown an idea that stemmed from overbooked hotels into a multibillion-dollar startup and become one of Silicon Valley's key players. Here's how the upstate New York native became one of the richest young tech founders in America. Chesky grew up in Niskayuna, N.Y., north of Alban...