- is it a real limit
why shouldn't it be real?!!
there is a limit for the maximum number that is allowed to be created and it is a consensus. and that amount is 21 million
- is it a good thing? I think it is but it looks like BTC will become more a commodity and not just a payment system
a currency doesn't have to be unlimited to be able to perform as a payment system!
you are comparing bitcoin to fiat (which is unlimited) and that is why you are confused.
also you are missing the fact that there are 8 decimal places after 1 bitcoin which makes it bigger for usage in case price was too high. it is something like an ingot of gold versus 1 gram of gold or gold dust for example.