Is there any issue here about fundamental stability? I'm struggling with how the universe can be at once expanding and some form of dimensionalized representation. Unless the other half of the relation is also in some sort of dynamic transition. Which might be true but suggest (perhaps as you do) there are things outside our perception that we can never perceive, not to mention measure or experience (ie travel too) because they are outside the space of our cognitive faculties. Or like you say, we are in a black hole and can't see out.