Honestly this is so rigged, we need an global agency to go and fight against such actions. First Elon Musk buys a lot of Bitcoins when they are cheap, then he goes and promotes them on Twitter to get the price to rise. Once the price rises he is just selling his coins with a nice profit. After that he is just stop promoting BTCs and saying that Tesla won't accept BTC anymore. I wouldn't be surprised if he starts to buy coins again when the price is down to 30,000 or 20,000 USD.
I suspect that too, the 17% drop in bitcoin is very unfortunate due to the issue made by Elon Musk. actually it is a business strategy that is deliberately designed by influential people in the cryptocurrency world so that the price of bitcoin can be controlled by them.