The group made up of the great fortunes valued at more than a billion dollars has been reduced by 87 members this year, since there have been more casualties than additions.

What would have happened to Elon Musk if he hadn’t sold Zip2 on time? This start up, specializing in making local guides on the Internet, was the origin of Musk’s fortune, but today, after his integration into the Altavista search engine more than two decades ago,

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