Alex Vilenkin interview about the Multiverse part 1/3

[csdr0]

At 7:17 a question was asked if our universe is expanding and infinite how could there possibly be room for some other universe to fit in and expand infinitely as well. If the universe is infinte in spatial dimension how could it be said to be expanding. Why would it expand in spatial dimension if it is already infinite in spatial dimension? What is infinite in this sense? Infinitely expanding or infinite in spatial dimension. If the latter is the case then expanding has no meaning.

[31428571J]

Just finished his book ('Many Worlds in One') - Chapter 17 was a revelation!

At last I have found an answer (mathematically at least) to my question;

Has 'cause' always to preceed 'effect'?

Still have a problem though with each universe being independent (causally disconnected) from every other.

[lifeandphilosophy]

There is an infinite amount of universes where people believe in the multiverse on seemingly convincing reasons. How do we know if we are in that universe or not? Philosophically, multiverse theories of this kind refute themselves.

[lifeandphilosophy]

Hmmm...if this was true it would seem to entail skepticism of the greatest kind...

[lifeandphilosophy]

So, is there a universe where I have wings and fly?

[nystagmus]

it would be hilarious if the multiverse did not exist and there was only our universe. because our imagination would have exceeded reality.

very interesting interview, thanks.

[adorianvlad]

Your welcome,

if you listen to the part 2

Alex Vilenkin explains that a Universe, having its own laws of nature, plus its own time and space (space-time), is independent of any other Universes, as such, before time (our Universe' time) there were other Universes as well. Space-time seems to be regarded as a particularity of any independent Universes with their own unique constants of nature. So, it makes sense to speak of "time before time" but a "different kind of time" than our Universes' time

[666Luftballons]

Isn't that the very definition of imagination?

[nystagmus]

i get what your saying. But if you believe in a creator as being all powerful, then our imaginations have exceeded his/her actual power if there is no such thing as a multiverse.

[666Luftballons]

I don't believe in such things, so that must be it.

[Davincidz]

@nystagmus 2 years ago since you made this comment, but I will respond to it either way.

Actually if you think about all the fiction we have written containing magic, dragons etc. etc. scifi we KNOW isn't true etc. imagination have already exceeded reality