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The limitless content of our universe might be only one instance of a large (and possibly infinite) number of other universes.

There may have been many big bangs, one of which created our universe. The other bangs created other universes.

According to 'M' theory, ours is not the only universe. Instead, 'M' theory predicts that a great many universes were created out of nothing.

There is not one big cosmic meaning for all, there is only the meaning we each give to our life, an individual meaning, an individual plot, like an individual novel, a book for each person.

The idea that there could be other universes out there is really one that stretches the mind in a great way.

I think the universe is just so big that there has to be something else out there.

It is well to remember that the entire universe, with one trifling exception, is composed of others.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?

There may be many Big Bangs that happened at various and far-flung locations, each creating its own swelling, spatial expanse, each creating a universe - our universe being the result of only one of those Big Bangs.