5 ms·
Eternal Inflation models of the universe have a really interesting answer to that question. It seems to be more mainstream than the conformal cyclic cosmology a
by andrewflnr 5y ago
Eternal Inflation models of the universe have a really interesting answer to that question. It seems to be more mainstream than the conformal cyclic cosmology a sibling mentioned (which is also very neat).
- denton-scratch 5y agoInflation models may be more mainstream; unfortunately, the evidence for inflation is rather thin. Inflation is a "theory" that purports to explain the unexpected smoothness of the cosmic microwave background. It is not a good theory, because it makes no predictions that are testable, even in principle. I think the unexpected smoothness of the CMB is evidence that the big bang theory is not correct; fixing the big bang theory by bolting on inflation looks to me like mathematical voodoo.
- wyager 5y agoI’ve never understood the claim that CMB homogeneity implies those regions need to be causally connected in a traditional sense; they might be “causally connected” by the fact that they obey the same physics. Even if you don’t accept that the physical laws themselves could be spread over a spacelike boundary, it could at least appear that way due to selection rules (the same way entanglement collapse can appear superluminal without being so under MWI).