Amir Rubin is the co-founder of Paracosm, a company that developed a handheld device that creates 3D color maps of real-world environments. “We’ve turned reality,” says Amir, “into a video game.” Amir is a second-generation entrepreneur. Both his parents are PhD’s, but his father quit academia to start a hardware store, and later a bakery. Amir wonders if any entrepreneur would make it without some level of “blind enthusiasm.”