Another entrepreneur exploring the possibilities is Max Levchin, a former chief technology officer of PayPal and a board member of Yelp Inc.

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On Monday evening I sat enthralled as he performed in King's Place London in a recital that combined his own compositions with works from Steve Reich and Max Richter, accompanied on screen by technology provided by Microsoft Research and others.

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Yahoo (NASDAQ: YHOO) will reportedly add Max Levchin, the co-founder and former Chief Technology Officer of PayPal, to its board.

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