I think Elon wanted to play with cryptocurrencies using Tesla at first, Bitcoin was the excuse, but the game went wrong, then he realized that not everyone was following him and he also realized that we are not all idiots, because the statement they made saying they didn't know that Bitcoin consumes "so much" electricity is the same as calling us idiots. It seems like Elon is now more focused on Doge and he also seems to be talking less on Twitter. Personally, I do not see Elon Musk as a crypto genius or a guru, it seems to me that he is just a billionaire with too much money and free time who sadly every day looks more like John McAfee.