http://www.youtube.com/watch?v=YUe0_4rdj0U
I saw this talk. However, in it somewhere they do talk about advanced beings. If you have infinite universes, all you have to do is have the ability to either pass between universes. You have the real possibility of god.
If you can imagine a being with 8x the size of Einsteins brain, you can imagine a being with a brain the size of a moon or earth. In fact in an infinite number of universes, it has to exist as it is possible.
The potential of life is never considered by Krauss. Especially when life evolves in space. Anything you can imagine life can possibly be life will become in a infinite multi-verse.
Also, I wonder about something science related. Krauss said empty space is not empty, it is unstable and matter/particles will be created in it. If the space between galaxies is increasing, is not the matter also increasing? Maybe our galaxy will be considered the start of a big bang in the future?