One of strategy in investing is to buy a lot of coins, but in this case we really have to be able to choose good coins to invest. if our goal is for long-term investment then buy coins that have good prospects for the long term, on the contrary if we want short-term investments then buy coins that will increase in price in the near future. Buying a lot of coins has a risk too if we can't choose a good coin because we will get a big loss. so all of that must be accompanied by knowledge and experience in choosing coins so that we can determine what coins and when is the right time to buy or sell coins.