For example, I do not believe in the scheme when one bitcoin remains and the altcoins disappear because nobody needs them. I do not believe in this. There are many coins that are in demand by investors. For example, look at the new YUSRA GLOBAL coin (https://yusra.global) with a POS-mining. Now mining in this YUSRA coin has just started and you can earn up to 30% per month only from POS mining. It seems to me that this is real and promising!