Grant Cardone recently listed the 10,275 square-foot beachfront mansion he bought from fashion designer Tommy Hilfiger for 646 Bitcoin (Crypto: BTC). However, he didn’t provide much context to the move when originally listing it. He has since taken to X, formerly Twitter, to explain the move: @GrantCardone on X In summary, Cardone would rather own Bitcoin or more multi-family real estate, which is consistent with his investing strategy over the years. “I would rather own BTC or more multi-family than be invested in one single location,” Cardone posted. “And we bought the house believing we had…