Doesn't Planck's constant seem like using integers in fixed point? Doesn't the speed of light feel like a sneaky limit on the maximum size of those integers?

Doesn't Planck's constant seem like using integers in fixed point? Doesn't the speed of light feel like a sneaky limit on the maximum size of those integers? :-) I humbly suggest the reason the universe we live in does not use Real numbers is because you couldn't simulate that with a Turing machine.