Unfortunately, any market, especially cryptocurrency, is subject to manipulation. A spark can ignite a flame at any time. I'm not sure that this time Elon Musk became this "spark", nevertheless, the crypto market correlates well with the American indices, and they simply fell. But next time there will be some other "Elon" on which all the dogs are hung, Elon Musk is to blame for the last drop in the price of Bitcoin in the very last place. There have always been manipulations here, learn to look for problems in your own mistakes, and not in the statements of public people.