Writer Adam Fisher talks with Recode's Kara Swisher about his new oral history, 'Valley of Genius: The Uncensored History of Silicon Valley.' Fisher interviewed some of tech's biggest names for the book, including Apple co-founder Steve Wozniak, but he discovered that "the most interesting, unfiltered, real stories" often came from people who were never in the spotlight. Learn more about your ad choices. Visit podcastchoices.com/adchoices