We asked @MarianaMinerals CEO @tbc415 on what he learned at Tesla: "Tesla had to vertically integrate from day one, because people weren’t making the parts that were needed." "It was do or die." When an industry is too broken, the only way to innovate is to do everything yourself. Trey is now applying these lessons to build Mariana Minerals, the only vertically integrated, software-first mining co.(a16z)