The fact that the laws of physics become inconsistent and stop making sense on very small and very large scales.
The simulation was designed to be believable to human eyes, but when you look too closely using technology to augment your measurements, you can see where the makers cut corners to save on memory.
Also, dark matter and the light speed limit are just a cop-out to avoid rendering the whole thing at once.

That’s a lot harder than just simply fingering your asshole

Trying it now, I'll let you know.

It's probably just floating point rounding errors.

To me it would be someone clipping through an untested area.

It’s been an hour; any news?

No infinite stamina, I always need a little nap after.

Idk if they're dead now, but I'll try it next... in the name of science

Yeah... And if you keep measuring smaller and smaller distances you find there's a hard-coded constant (PLANCK_LENGTH) that prevents you from measuring distances any smaller.

This is anecdotal but I've never run out of stamina with my finger up my ass so Tom might be on to something.

A lot less fun, too.

Must have hit the eject button.

I said I'd let you know.

Not enough fingers or not deep enough. Keep trying.

I would try dividing by zero.