Mark Zuckerberg’s mentor and an early investor in Facebook on why his book Zucked urges people to turn away from big tech’s toxic business modelRoger McNamee is an American fund manager and venture capitalist who has made investments in, among others, Electronic Arts, Sybase, Palm Inc and Facebook. In 2004, along with Bono and others, he co-founded Elevation Partners, a private equity firm. He has recently published Zucked: Waking Up to the Facebook Catastrophe.What is your history with Facebook?I’ve been a technology investor since 1982, and a tech optimist until very recently.