- Joined
- Jan 15, 2006
- Posts
- 123,002
- Reaction score
- 4,586
- Points
- 113
Hawking's remark isn't just dissimilar, it precludes your interpretation.
Um... I didn't offer an interpretation.
And there's nothing about his statement that precludes the other comment -- indeed nothing about his statement that address the issue of God at all, except in the often-found-delightful parallel with Christian theology, i.e. that there "wasn't even nothing" before our universe.
And we're back to disagreeing over basic terms. You take the universe to be a particular thing which exists in a greater context. What do you call that larger, all-consuming context if not the universe? I'm in need of a noun here, in order to make this conversation productive.
I've been using Susskind's terminology, which I like. Let's see if I can get it straight without going back to the book and digging.
"Universe" means an entity like ours, which began with the Big Bang: its own set of physical constants, its own boundary therefore, its own contents which, as with us, can't move from one such realm to the next.
The collection of all universes which do exist, he refers to as the "megaverse", in which universes are like pockets -- was it Hawking who used the illustration of bubbles of air in a great ocean of water?
The collection of universes which we see as possible -- I think I've got this right -- under current theory, he calls the "Landscape". It obviously includes our universe, but does not include any conceivable universe, since apparently string theory says that not all combinations of constants are possible (I don't grasp that, but then I stopped math at vector calculus and such). The concept of supersymmetry is tied up with the Landscape, but I'd have to go back to that chapter to do much more than grope at the connection (something about supersymmetry serving to tell us where the Landscape is empty????).
He mentions that quite a number of physicists use "multiverse" instead of megaverse, and that a few even use "omniverse".

































