can someone explain something for me I don't under stand yet .. people say these coins are not based on fiat currency but there based on bitcoins price and bitcoins price is based on the dollar ...and im not seeing something. I no they have a limit to how many can be made but what if the dollar does fall what happens then? how will pricing on them be then? will they still be bitcoins are worth this many dollars ? im guessing the term dollar wouldn't even be used any more .. but its not like bitcoins are based on gold . so isn't really a made up fiat currency to . I just don't get it