Elon Musk’s company SpaceX has just gone public, making the world’s richest man one of the wealthiest humans in history. But this story isn't just about money. From electric cars to the stars, Musk has created an empire that spans multiple industries - accruing power and political influence that continues to cause controversy across the globe. For some, he’s a visionary. To others, he’s dangerous. So how did a South African gaming geek become the first dollar trillionaire? And what does Elon