Elon Musk has officially been dethroned from the top of Forbes’ annual “World’s Billionaire’s List. Forbes explained that Musk’s wealth had fallen because his $44 billion Twitter purchase, funded by Tesla shares, scared investors and sent Tesla stock sinking sharply last year. “Nearly half the list is poorer than they were 12 months ago, but a lucky few are billions — or even tens of billions — of dollars richer