perhaps at the next stage of Bitcoin growth, domination will fall, and when Bitcoin goes for a correction, money from it will go to Altcoin growth, Or maybe Bitcoin may already be pumped before halving.
it can happen if there is such an event. but seeing what happened when bitcoin experienced a correction most of the altcoins also followed it. this is different from the pump, I don't know why this event happened. when growing altcoin doesn't follow it but when it goes down, altcoin follows bitcoin.