I was thinking of some bizarre things, but I won't post those, instead choosing to post something only half-bizarre I thought.
So the question is this: assuming there exist more dimensions (there isn't much reason to think there aren't, just humans don't sense them), wouldn't it be more likely that any dangerous realm outside, such as in 3+x dimensions, would be potentially lethal for a 3d-lander? And if so, wouldn't it make sense from a practical standpoint to have 3d beings just identify a potential "outside" as something very far away and/or reachable only in very specific and unusual conditions?
If we take it the other way round, something hypothetically living in 2d won't have a sense of (eg) height, but this would mean it should also never go anywhere which has a height-dimension, else there it risks being maimed or otherwise destroyed by any 3d being. But one has to suppose that the easier way to secure that a 2d being won't reach 3d in any way would be to have a border to 3d be very distinct. After all, you can't just go to space without meaning to - you have to develop spaceships and then board one (not saying space is the 4d for us, just that any theoretical reachable entry point to 4d - it may not even exist - would be very clearly sensed by a 3d being as a border).
Obviously those borders (from 2d to 3d, from 3d to 4d etc) would be sensed as objects of the previous dimension. (assuming any border point is actually reachable; this is also a hypothesis)
The other reply would be to assume xd things can chaotically reach x+1d at times, and so do all the time, but not as often that this leads to clear danger.
So the question is this: assuming there exist more dimensions (there isn't much reason to think there aren't, just humans don't sense them), wouldn't it be more likely that any dangerous realm outside, such as in 3+x dimensions, would be potentially lethal for a 3d-lander? And if so, wouldn't it make sense from a practical standpoint to have 3d beings just identify a potential "outside" as something very far away and/or reachable only in very specific and unusual conditions?
If we take it the other way round, something hypothetically living in 2d won't have a sense of (eg) height, but this would mean it should also never go anywhere which has a height-dimension, else there it risks being maimed or otherwise destroyed by any 3d being. But one has to suppose that the easier way to secure that a 2d being won't reach 3d in any way would be to have a border to 3d be very distinct. After all, you can't just go to space without meaning to - you have to develop spaceships and then board one (not saying space is the 4d for us, just that any theoretical reachable entry point to 4d - it may not even exist - would be very clearly sensed by a 3d being as a border).
Obviously those borders (from 2d to 3d, from 3d to 4d etc) would be sensed as objects of the previous dimension. (assuming any border point is actually reachable; this is also a hypothesis)
The other reply would be to assume xd things can chaotically reach x+1d at times, and so do all the time, but not as often that this leads to clear danger.
