It has to be said. Its common sense. There are thousands of coins. Scamcoin, losercoin, Shiba coin. All real coins btw.
Yes there will be a couple coins that are very valuable in a couple years but the vast majority of them will be worthless.
Only coins that do things will be valuable. Coins that you have that are just there to hopefully go up on value so you can profit will be worthless.
Its like the dot com boom. You are betting on websites. Which website is going to get the most visitors. Most died.
This is absolutely true, I have a few coins from 2017 which was worth alot, but today have become worthless or even lost 90% of their value even when we had a massive bull run they didn't pump, same will apply for cryptocurrencies we are having today, in a few years from now they would become worthless, some have already become dead in a space of just a month sometimes just a week or two, shitcoins are just everywhere.