usually if the price of bitcoin rises high or bullish trend altcoin price rises not big or even tends to sideway but if bitcoin experiences sideway then the price of altcoin will rise high. after the price of bitcoin rises high. wait for the price of bitcoin sideway then the price of altcoin will skyrocket high and that's what is called altcoin seasson.
I have not taken note of this before even though it may be true and I have to pay attention to see it for myself. Could this be the explanation to what the altcoin season is? I made a post on the topic
What causes altcoin season? but I have not gotten a clear answer as to why we should have bull season that will be followed by altcoin season. Some people actually gave response close to yours but not exactly the same as yours. If I may ask, when do we expected the altcoin season in the present bull market? Do you think it will come separately from the bull market now?