The Sunday Times’ tech correspondent Danny Fortson brings on Tim Barat, founder of Gridware, to talk about dropping out of school at 15 (4:30), his first company (11:30), moving to California (17:50), getting into college (22:30), the problem he's targeting (25:00), wildfires (28:20), building a super sensor (34:00), starting a company (36:30), raising money (42:30), how the tech works (51:50), how he sells it (59:10), and the what's left to do (1:02:50).