If we were stuck in a virtual reality machine using highly advanced forms of current technology then the computer would have a clock cycle (corresponding to a quantum of time) and resolution (corresponding to quanta of distances.)
But it seems this is not the case. We are not stuck in The Matrix!
Unless of course those sneaky computer bastards are using asynchronous clocking!
This just shows that God runs Windows and is using the OS's timer rather than the universal hardware. I'd criticize this, but who am I to tell God which OS to run.
They're probably running the simulation at a finer resolution than Planck time/length for better accuracy, and to make sure we don't catch on to them with experiments like this...