If you worked for a startup in the 1990s, chances were you were figuring out how to make money on the brand spankin' new World Wide Web. Leap forward 10 years, and the typical startup was all about apps on your smartphone, to do everything from touching up selfies, to booking flights, to getting your laundry picked up. Now, we're in the decade of the startup launched to remake transportation--the electric cars, ride sharing networks, and personal flying machines that will transform the way people get around. Lyft, formed in 2012, joined Uber and others in persuading people that's it's fine to get into strangers' cars. Zipline started national drone delivery networks, dropping medical supplies in Rwanda and Tanzania. Tesla made electric propulsion, once the province of eco-warriors, fast and cool.