I think that 400,000 employment figure will come down rapidly once Musk gets his AI and robots to be able to do most of their work. Like most of these tech billionaires, he doesn't give a s**t about the workers. It's all about the bottom line. Tax breaks, profit, and enriching themselves and their cronies is all that matters. We saw that with his $1M vote buying schemes. Paying for influence. These tech billionaires are not investing every cent they can spend in AI, robotics and quantum just for the fun of it. its all about maximising their wealth.