Yes, but gold, bitcoin, and giant rocks can't be inflated at will, which is what the OP was complaining about.
Simulated pieces of green paper can.
Even with the formerly-used real pieces of green paper, there's a physical limit to how fast printing presses can run.
With simulated pieces of green paper, you can just type some numbers into a computer and suddenly there are twice as many of them as there were before. Or a hundred times as many. Or a trillion times as many...