What will crypto space look like if all the coins we have now is just 20 pieces? And that is it, no thousands or hundreds allow, I wonder how profitable they will be because there will be badass huge volume and huge investors too, I think crypto problem is the quantity of coins we have
That's quite a point, OP.
However I don't think that long-term investors like me would even consider looking for coins below top 10 in CMC, and I am not sure if the same case applies to other investors as well but surely a visibly limited amount of coins could be profitable.
On the opposite side, there would be scarcity in investment. How about those people who had sold? How would they be able to buy again?
I see competition at that state of the market though.