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Elon Musk has flown so high, so fast, it is hard not to wonder when, and how, he will crash to earth. How could he not? Musk is so many things – inventor, entrepreneur, billionaire, space pioneer, inspiration for Iron Man’s playboy superhero Tony Stark – and he has pushed the boundaries of science and business, doing what others declare impossible. At some point, surely, he will fall victim to sod’s law, or gravity.
