well, I've read as much science-fiction as most folks, and it was great to be able to suspend belief for awhile and travel faster than light, and thru parallel 'universes', and to the gravitational edge of Neutron stars, and to the center of the galaxy with Larry Niven. (Who also gave us a world built AROUND a sun!).........but so many of those concepts are will-o-the-wisps, like "east of the sun and west of the moon".

It is most fascinating to me that we even able to think about our 'universe' being part of a larger atom, etc....to jump from that to supposing that it might actually be possible is just too much for my poor old brain..*grin*