I've been a Silicon Valley entrepreneur and investor for over 25 years. I founded 500 Startups and worked at Founders Fund and PayPal. I’ve invested in hundreds of startups including 10+ unicorns and 4 IPOs (TWLO, SEND, LYFT, Life360). Forbes named me one of the top 100 VCs in the world in 2016 and 2017. I have a BS in Engineering / Applied Mathematics from Johns Hopkins. I'm a nerd.