Michael Lewis is a best selling author of non-fiction books. I just got a copy of "Flashboys" today, which is about how high frequency trading is a vehicle for many unfair practices in financial markets. In promoting the book as well as his ideas, he's been making the rounds on TV and the internet.
He is surprisingly willing to call the stock market rigged against retail investors. He is also very good at fielding criticism. I am impressed with how good he is at not letting the interviewers change the topic.
Here's a long Charlie Rose interview.
He also has an hour-long interview with Conan O'Brien for Serious Jibber Jabber
And he lives in Berkeley!