I think they're assuming that the simulators don't have infinite resources, so eventually we'll find a 'wall' in the simulation.
"With finite resources at their disposal, our descendants will likely make use of effective theory methods,
as is done today, to simulate every-increasing complexity, by, for instance, using meshes
that adapt to the relevant physical length scales, or by using fluid dynamics to determine
the behavior of fluids, which are constrained to rigorously reproduce the fundamental laws
of nature."
It's possible that if we were simulated, the simulators aren't actually trying to hide the nature of our universe from us. It's also possible even though the simulation started with a 'simple' framework that they could have hidden better if desired, that by becoming a self aware information system we can no longer be switched off / restarted without violating their ethical constraints. So it's possible that the limits a simulation actually are detectable.
Of course as someone said, if the simulators were actively monitoring your thoughts with the intent of stopping you from finding the boundaries then there truly would be nothing you could do.
Our decedents might have a certain level of technological advancement that Moore's law works a lot faster for them. If it is above a certain level, we would not fast enough to detect that limit.
"With finite resources at their disposal, our descendants will likely make use of effective theory methods, as is done today, to simulate every-increasing complexity, by, for instance, using meshes that adapt to the relevant physical length scales, or by using fluid dynamics to determine the behavior of fluids, which are constrained to rigorously reproduce the fundamental laws of nature."
It's possible that if we were simulated, the simulators aren't actually trying to hide the nature of our universe from us. It's also possible even though the simulation started with a 'simple' framework that they could have hidden better if desired, that by becoming a self aware information system we can no longer be switched off / restarted without violating their ethical constraints. So it's possible that the limits a simulation actually are detectable.
Of course as someone said, if the simulators were actively monitoring your thoughts with the intent of stopping you from finding the boundaries then there truly would be nothing you could do.