... I don't mean quantum effects limiting hardware fabrication sizing. Such small scales have for some time exhibited issues.
Rather, along the lines of imagining the smallest possible divisions of the universe's most tiny physical ruler: its smallest markings would have to be larger than the Planck length. (Yes?) (For the sake of simplicity, assume the division lines have no width.)
Two interrelated questions:
Question 1: Could the divisions of this physical ruler be exactly ℓP or would they have to be only just slightly larger, or some multiple of ℓP ?
E.g. similar conceptually to the Nyquist Frequency in audio, i.e. the sample size would have to exceed ℓP by some factor before the divisions become accurate.
Question 2a: Does being limited to that smallest physical approximation interval ultimately imply that models of Planck-level activities must inherently have some (subtle?) systemic, Heisenberg limitation affecting their combinatoric results ?
(Question 2b: Is question 2a really just a computer science version of aspects of the measurement problem?)