Eric Migicovsky knows a thing or two about wearables. As the founder and CEO of Pebble, he created the first true smartwatch to be a success, breaking records on Kickstarter that still stand today. Now Migicovsky works as a partner at Y Combinator, and he joined us for a chat about wearables, how Pebble began, his take on startups in the US versus China, and the worst pitch he's ever heard -- all while playing Mario Kart 64.