Jim Simons, founder of quantitative investment firm Renaissance Technologies (commonly referred to as Rentec) this year made a rare appearance at one of the TED talks. The conversation was entitled "A rare interview with the mathematician who cracked Wall Street." As we've highlighted in the past, Rentec's internal Medallion Fund has generated outstanding performance numbers. While many hedge funds charge 2% management and 20% performance fees, Medallion was said to charge 5% and 44% at one time. While this fund is only available internally, Rentec also runs two other funds available to outside investors, known as RIFF and RIEF. Read more:http://www.marketfolly.com/2015/09/jim-simons-rare-interview...