How much of all the money in the world does Elon Musk have?

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Earlier this year, South African-born tech tycoon Elon Musk briefly became the world’s first dollar trillionaire. This prompted loyal listener Stephen to email the More or Less team, to ask us to investigate something his daughter had been pondering: For all Musk’s vast wealth, what does it equate to as a proportion of all the wealth in the world? How much of all the money does Elon Musk have? We set about trying to figure this out, with the help of Robin Wigglesworth, author of A Fabulous Debt and journalist at the Financial Times. If you’ve seen a number in the news that you think we should take a look at, or have an interesting statistical question like Stephen, get in touch: moreorless@bbc.co.uk Presenter: Lizzy McNeill Producer: Josh McMinn Series producer: Tom Colls Production co-ordinator: Brenda Brown Sound mix: James Beard Editor: Richard Vadon