Hm, do you think a Primarch could survive an extended period of time totally cut off from the Warp? I mean, they'd probably have a Negative Trait that cut 25-50% of their Checks off from the results, but Blanks don't cause instant death by themselves.
Hm, do other dimensions necessarily lack the warp, or do they simply lack a warp that is both utilized and riled up in the way it is in 40k? Personally, if I were sending a Primarch to another dimension, I would assume there was a local warp and I would further assume that this local warp would affect the Primarch and the Primarch would affect the local warp.
Cutting 25-50% off their checks and also imposing big consequences on them for their actions (since a universe with a relatively placid warp would be very open to being shaped by this invader).
But you could have different effects. For example, in Babylon 5, one could treat hyperspace as a walled-off section of that universe's warp that was filled with Vorlon technology structuring it. Thirdspace, then, would be a deeper level of that warp. So a Primarch in the B5 universe might have a bonus to actions that were "orderly" and a penalty to "disorderly" actions due to how hyperspace was shaped by the Vorlon technology, and might risk the 3rd space aliens invading if they use the warp too much or attempt to reprogram the Vorlon tech.
They were all, at some point, highly religious. The counter-arguement writes itself.
Not to mention Rome, Persia, the Mughal empire and the Chinese empire - all of which were durable empires in which religion played a key role in the health of those societies.
And interestingly, the hight of "civilization" (at least as I define it, which may be my own biases showing) in any given region tends to coincide with a local time of high religious diversity.
Truth. Have you seen Isaac Arthur's videos on black hole civilizations?
I have indeed. Though I think he focuses too much on such civilizations quintillions of years in the future - we know of no way yet in which a civilization could operate with enough energy efficiency to make black holes useful in such deep time. His black hole starships episode is more applicable to our case, and we know for sure that high-energy black hole machines would work with what we know today.
Not to mention that from our perspective the farther away something is the faster it's moving away from us since all the space between us is expanding at the same rate so even if that for some reason caps at the speed of c that's the same speed gravity propagates so it'll never actually get there. Well, we'd still have to dispose of all the helium to keep the galaxy from collapsing into a black hole as we keep adding mass. But the universe won't collapse so we can just run away if that starts happening.
Since all energy curves space time a little, creating any amount of free energy (energy that wasn't in the universe at the big bang) would slow the universe's expansion. Obviously, make enough free stuff and the universe starts to collapse inwards, likely with dire consequences to human life, since it is unlikely that entropy would work in the way it does currently if the universe were collapsing. Very likely, we will need destruction/annihilation crystals to balance things out.
fasquardon