That one is going to be fun if we (Ethereum) decide to premine 2^200 ether into a few standard-library contracts (eg. ecrecover, bloom filters, data structures) to compensate people a few microcents per call for the mismatch between their gas cost in a naive EVM implementation and their actual execution cost...
Edit: although I suppose you could argue that currency units which are existent, but which cannot be accessed for 1000000000000000000000000000000 years because they are locked up in a contract that no one can open up at anything more than a trickle rate, actually inexistent. Will get complicated in any case.
That one is going to be fun if we (Ethereum) decide to premine 2^200 ether into a few standard-library contracts (eg. ecrecover, bloom filters, data structures) to compensate people a few microcents per call for the mismatch between their gas cost in a naive EVM implementation and their actual execution cost...
Edit: although I suppose you could argue that currency units which are existent, but which cannot be accessed for 1000000000000000000000000000000 years because they are locked up in a contract that no one can open up at anything more than a trickle rate, actually inexistent. Will get complicated in any case.