Many Silicon Valley entrepreneurs brag about dropping out of college to start billion dollar companies, but they have nothing on Tao Xiangli. After dropping out of school after the fifth grade, Tao built his own submarine without any investor capital. Since then, he's been working on a constantly evolving human-size robot that lives in his bedroom in Beijing. We visited Tao to talk about his robot and his dream to become a successful inventor.More robots:The World's First Commercially Available Cyborg Is a Cyborg CockroachIsrael's Killer RobotsMini Sumo Robots