Imagine that you are a "trader" and you are saying to yourself: man im feeling bored. How about i exit BTC at 26k and buy it back at 20, because you know i can see the future. Consequently at one sunny random day the first BTC ETF gets approved. Now everything pumps 50% in a few days and you are left out waiting for a "retracement" now, because you know you are a "smart trader". Moral of the story is just ride it out , its a lot less stress and missed gains.