Now my question is, do we just invest an altcoin to take advantage of the opportunity to make some x in return?
Because I know altcoin rarely survive the dip maybe after bull run.
For the most part yes, altcoins are invested in by x's hunters. During the bull run there are really a lot of new projects that show crazy returns, which can sometimes reach x500-x700 in just a few months. Those who have monitored meta universes in 2021 will understand. Holding most altcoins for a long time is unprofitable, because many altcoins do not live longer than 3 years, they are quickly replaced by new altcoins, and so on in a circle.