Tom Perkins had done it all. He’d made a fortune, conquered Silicon Valley, even been Danielle Steel’s fifth husband for a time. His venture capital firm, Kleiner Perkins Caufield &anp; Byers, was an early backer of Genentech, Netscape, and Google. But when he turned 70 a few years ago, Perkins decided to do something even grander and a bit crazier: He would build the biggest, riskiest, fastest, most technologically advanced, single-hulled sailing mega yacht in the world. The 289-foot Maltese Falcon, launched in spring 2006, is that engineering dream come to life.