I am not sure if the altcoins will reach their highest point in 2021, because in my opinion altcoin is not a game that can be in Atik's brain like what users want, in my opinion altcoins are very realistic anything can happen, the ups and downs of altcoins depend demand and the situation in the market, if there is a lot of demand, the price will probably increase, and vice versa.
it is true that altcoin movements follow the market, but you have to know that it is the whales that control the price of these altcoins. Altcoins also follow the price of bitcoin, if bitcoin goes up then altcoins go up, if bitcoin goes down then altcoins will also decrease.