Austin Russell, 26, is the youngest self-made billionaire on Forbes' annual list of the world's billionaires, released on Tuesday. Russell became a billionaire virtually overnight in December when his company, Luminar Technologies, was listed on the Nasdaq via an SPAC merger. Forbes estimated Russell's net worth at $2.4 billion.The 6-foot-4 entrepreneur dropped out of Stanford in 2012 to found laser lidar (an acronym for light, detection and ranging) startup Luminar Technologies after getting a $100,000 fellowship from billionaire tech investor Peter Thiel in 2012 and dropped out of Stanford to found Luminar Technologies, which builds sensors for autonomous vehicles.Its sensors now help self-driving cars of such customers as Volvo, Toyota and Intel’s Mobileye see in 3D. The company listed via a SPAC merger in December 2020, catapulting him into the billionaire ranks overnight. At age 26, he is the world’s youngest self-made billionaire. The company's sensors have been ...