investment. venture capitalist john door got in at the ground floor of the companies before they went public and invested millions on behalf of his company. and it s not just amazon and google. he s legendary for picking company after company that went on to unimaginable success. i wanted to talk to him about that, his new book measure what matters and about the serious questions silicon valley is facing today. i want to ask you about the swirling issues about technology these days. people look at facebook and google and they say, you guys are selling data that isn t yours. you re selling data that my browsing data, what apps i m look iing at, what searches i d. and you shouldn t be able to do this. or at least you shouldn t be able to do it without my say us so. do the critics have a point? they do.