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- Jeff Bezos has reclaimed the title of the world's richest person from luxury tycoon Bernard Arnault.
- Bezos, Amazon's cofounder, now leads Bloomberg's Billionaires Index with a $209 billion net worth.
- Bezos, Arnault, and Elon Musk have swapped places frequently atop the list in recent years.
Jeff Bezos has reclaimed the top spot as the world's richest person once again.
According to Bloomberg's Billionaires Index, the Amazon cofounder has dethroned Bernard Arnault and now ranks first among the world's 500 richest billionaires.