Bitcoin is most known coin in terms of cryptocurrency, i think people who are unfamiliar with the term of crypto are associating them with Bitcoin. So in my opinion most known crypto will be most popular and people will want to get it. Also they know they can get easy profit with it, as the price isn't really stable and if they know what they're doing, they can buy cheap and sell expensive.
did just that today the price has not reached the maximum, which everyone is waiting for it Bitcoin. Apparently due to some large whales the price goes down again, and this is the first reason for the panic in the market.