Just assume we are 2d people on the surface of a sphere. A sphere is quite a good enough model.
As you say the good old baking raisin bread model of inflation: it does indeed expand to somewhere, so that analogy breaks at that point. There are 2 ways for inflation to work on the surface of our sphere: 1) We are localized on less of the surface of the sphere and become spread out more - while the sphere remains the same size. Or 2) the radius of the sphere increases, automatically spreading the points on the sphere.
What's wrong with number 1? I think that this would require inflation in our neck of the woods with, ummm..., deflation at the antipode. Otherwise you get #2 - expansion. Why shouldn't there be accompanying deflation? Heck if I know. It just seems messy to me.
Space/Science » in reply to Even without inflation,
You don't need to hold a picture of a hypersphere in your head.
The whole thread (23 posts)
- Nested Universe?
- I'm going out on a limb.
- More cooped than nested, I think.
- here's my deal...
- Well, this Universe has at least one boarder, me!