[newheart]

Space, limited volume, but no "edge" to nothingness.

Definitely boggles the mind. What Francis Schaefer called "nothing-nothing." He also described it as both necessary and unthinkable at the same time.

[samtheman]

It's expanding into the false vacuum of eternal inflation... as are the infinite number of other universes out there.

If inflation happens once, an infinite number of universes are produced.

---Alan Guth.