How John Zimmer Made Private Cars Work Like Taxis

Ride-sharing apps like Uber and Lyft have totally transformed transportation in many cities around the world. Even though Lyft is just a fraction the size of Uber, it is still valued at more than $5 billion. One of the guys behind it, John Zimmer, never thought that ride-sharing would be his life's work. He actually studied hotel management at Cornell, but his interests really started to change during his senior year.