Our universe could be just one bubble in a vast froth of
other bubble universes.
«If we wait long enough, our bubble universe will eventually undergo an infinite number of collisions with
other bubble universes,» Vilenkin says.
A detection of such a spot with the predicted intensity profile would provide direct evidence for the existence of
other bubble universes.
Other bubble universes might be detected in the subtle temperature variations of the cosmic microwave background radiation left over from the big bang of our own universe.
Not exact matches
We know nothing of alternate or additional
universes or
bubbles or whatever
other unimaginables exist in the larger places.
(For example, there's no reason that our
universe might not have «
bubbled» out from the black hole of another
universe or be the result of two or more larger dimensions colliding with each
other — we just don't know)
In fact, I'm thinking right now about a simple, Earth - based experiment that might turn up evidence for little
bubbles of the
other universes.
As scientists we track down all promising leads, and there's reason to suspect that our
universe may be one of many — a single
bubble in a huge
bubble bath of
other universes.
According to some cosmological models, our
universe began as a blip of extreme energy within some
other, preexisting
universe, which then
bubbled off to create a whole reality of its own.
It is certainly in principle possible for
bubble universes to collide with each
other.
NOMURA REPLIES: Regarding Kell's question: Because of the eternally inflating nature of the space in which our
bubble resides, the probability of our
universe colliding with
other universes is almost certain.
However,
other research was starting to show that our
universe could actually survive a run - in with an alien
bubble — and in fact, there was a good chance that such a nonlethal collision had already occurred.
All of these
universes are believed to come into existence through a process called eternal inflation, in which at least one
universe continually expands at an incredible rate, while
others form and grow within it like
bubbles.
Anyway, I guess the thing is that you try and create or maintain a
bubble that is the «we / us» and, if things are going to work, and it remains worth the effort, you have to leave your
other world and join another; almost co-existing in parallel
universes.