I believe the universe doesn’t have to play nice in terms of our ability to know anything
It’s not just a belief. The universe does not have to play nice. We are “embedded agents”, which means that the universe is predictable enough for the agents to survive, which means that some small parts of the universe we call maps are coarse-grained isomorphic to much larger parts we call the territory. But there is no requirement that maps with infinite fidelity could be constructed, especially within a given embedded agent. And there is definitely no requirement that unlimited fidelity has to come with unlimited applicability. If anything, among the set of all possible extensions of our universe these two requirements probably apply to a set of measure zero. It may well be that at some point we as human-shaped embedded agents mostly good for self-replication and only incidentally suitable for abstract thought, will hit or maybe already have hit in some areas the limits of such maps.
It’s not just a belief. The universe does not have to play nice. We are “embedded agents”, which means that the universe is predictable enough for the agents to survive, which means that some small parts of the universe we call maps are coarse-grained isomorphic to much larger parts we call the territory. But there is no requirement that maps with infinite fidelity could be constructed, especially within a given embedded agent. And there is definitely no requirement that unlimited fidelity has to come with unlimited applicability. If anything, among the set of all possible extensions of our universe these two requirements probably apply to a set of measure zero. It may well be that at some point we as human-shaped embedded agents mostly good for self-replication and only incidentally suitable for abstract thought, will hit or maybe already have hit in some areas the limits of such maps.