Elon Musk revealed he doesn't invest in stocks, preferring to build companies. He highlighted AI, robotics, and space flight as future economic powerhouses. Musk also proposed AI and robotics as America's solution to its massive debt crisis, predicting they will boost productivity and enable economic growth to outpace inflation and debt.

Source: Elon Musk says he doesn't buy stocks: I don’t look for things to invest in. I just try to …