So basically whenever bitcoin goes up, altcoin goes down and vice versa?
Yes technically if bitcoin goes up. Then we can say that many altcoins would goes dump becuase of many trades selling their altcoin and will affect theprice of it. And they will buy bitcoin as soon as it's lower and sell it high. So after bitcoin pump they will their bitcoins in higher and buying many altcoins that have affect in bitcoin pump
It is not as simple as the thread title said .
Actually the cryptocurrency market is so complicated to understand and hard to predicted.
I can say it is feel like random market and even manipulateable , so the topic is wrong for me personally.