Hedge fund billionaire Ray Dalio says bitcoin will never seriously challenge gold

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• Ray Dalio thinks investors should make sure they have enough gold in their portfolios.
• The hedge-fund billionaire previously recommended allocating 15% to either gold or bitcoin.
• But Dalio recently said he doesn't think bitcoin is a safe-haven trade or a rival to gold.

Ray Dalio said the gold versus bitcoin debate has a clear winner. To the billionaire investor and founder of Bridgewater Associates...