Given the fact that there are only 21M bitcoins, one could wonder if bitcoin was designed for a few selected or first few adopters and not to be a global currency in a world with +7 billions people.
What happens 40 years from now when most of the people on earth turn to using crypto currency? simply use alt coins when they see bitcoin already in hands of a few hundreds people and not wanting to be manipulated by them or even by 1m coins of satoshi?
Can't we have a second version of same code with same team and the same credibility developing it?
Yes there are only 21M Bitcoins but do remember that they are divisible into 8 decimal units. The design was built for payments on the internet without any middlemen involved aka banks.
It is very arguable that most, if not all of the people would be using Bitcoin as the only cryptocurrency solution 40 years from now. Banks are also interested in the technology to remain relevant in online payments. So we might either see Bitcoin evolve to become the dominant solution for online payments or we see it replaced by something else.
Or maybe we would see Bitcoin become as a sort of commodity and as a store of value.