John McAfee knows about risk. A mathematician by training, in the late 1980s he developed the antivirus computer software program that has become a household name. In the 1990s he pioneered instant-messaging. In both cases, he grew bored and cashed out. At his peak, he was reportedly worth about $100 million.
"I don't know and that's the honest truth, eventually you have so many resources that a tiny fluctuation in the market can make you worth ten million dollars more in the morning and ten...Full Story