Re: what are the chances that more than 21 million bitcoin will be created?
The root of the problem in this discussion is that it isn't clear what the definition of the word "bitcoin" is.
Ok I think most people will agree that we are talking about what the majority considers to be Bitcoin. So in that case Bitcoin can be changed to support any number of coins. Case closed
. I disagree, but that's the root of the problem here.
An oak tree doesn't stop being what it is just because the majority choose to call some newly discovered bird an "oak tree".