The forum discussion centers on the concept of the multiverse as described in Michio Kaku's book "Parallel Worlds," which introduces M-theory as a framework for understanding our universe as a "bubble" within an expansive eleven-dimensional multiverse. Participants express skepticism about the multiverse's ability to address fundamental questions of creation and the origins of matter and energy. The discussion also touches on the nature of the eleven dimensions proposed by M-theory, asserting their status as genuine physical dimensions, and the implications of gamma-ray bursts as potential catalysts for the formation of new universes.
PREREQUISITESPhysicists, cosmologists, and anyone interested in advanced theoretical physics, particularly those exploring the implications of the multiverse and the nature of dimensions beyond the observable universe.
In PARALLEL WORLDS, his first book of physics since Hyperspace, Michio Kaku describes the extraordinary advances that have transformed cosmology and remade our understanding of the universe. The startling discovery of a mysterious energy driving the universe to expand and scientists' attempts to reconcile the four faces of the universe have led to the development of the revolutionary M-theory. The leading candidate for Einstein’s fabled “theory of everything,” M-theory depicts our universe as a “bubble” floating in an expansive eleven-dimensional “multiverse." Leading physicists now envision our universe as one of countless "bubble universes" only millimeters away from each other...
Gil Fuller said:Are the eleven dimensions of M-theory real dimensions with real units (temporal and/or spacial) or are they purely mathmatical with no real dimensions? If anyone knows, I would appreciate the info.
MultiversesTau_Muon_PlanetEater said:Question for you sol:
How did the Multiverse come to be? and is it just another bubble inside an Uberverse comprised of many Multiverse bubbles?
I love the idea of a Multiverse, but in my opinion it does not solve the issue of creation or even really get us closer to understanding it. All we do is pass the buck on.
Lynn Cominsky said:Universe was originally defined to include everything
However, with inflation, the possibility exists that our “bubble universe” is only one of many such regions that could have formed
The other universes could have very different physical conditions as a result of different ways that the unified symmetry was broken
New universes may be forming with each gamma-ray burst that makes a black hole!
Gamma-ray bursts (GRBs) are the most powerful explosions the Universe has seen since the Big Bang. They occur approximately once per day and are brief, but intense, flashes of gamma radiation. They come from all different directions of the sky and last from a few milliseconds to a few hundred seconds. So far scientists do not know what causes them. Do they signal the birth of a black hole in a massive stellar explosion? Are they the product of the collision of two neutron stars? Or is it some other exotic phenomenon that causes these bursts?
With Swift, scientists will now have a tool dedicated to answering these questions and solving the gamma-ray burst mystery. Its three instruments will give scientists the ability to scrutinize gamma-ray bursts like never before. Within seconds of detecting a burst, Swift will relay a burst's location to ground stations, allowing both ground-based and space-based telescopes around the world the opportunity to observe the burst's afterglow.
I wish to add that the very nature of electromagnetic wave energy is in of itself paradoxical to the four dimensional universe...we may find that the added extra dimensions in some way allow or cause the duality of light as both particle and wave form...in that light travels at a high end constant speed limit that can only be "slowed" under special laboratory conditions (the introduction of heavy/dense mediums and multicapsules of dense mediums that purposely though temporarily slow its forward momentum until it leaves the medium on the exiting side). In other words, Quantum mechanics and wave form energy exhibit properties that otherwise run counter to the four dimensions we experience. Bottom line...the extra dimensions seem more plausible in the "light" of it all.selfAdjoint said:They are proposed as genuine, physical dimensions. The evidence for this is the effort that has gone into expaining why we don't see but four of them. This leads to the compaction on tiny manifolds, and that leads to many of the physical developments of string physics.
There is this gnawing question about the multiverse concept...were it that such multiverses truly exist and that they could each be almost identical to our own, could we be bumped from one to the next without ever knowing it? Here I could be as dumb as this, and in some other almost smart? Wow, and then there's this matter of the girl next door...Tau_Muon_PlanetEater said:Question for you sol:
How did the Multiverse come to be? and is it just another bubble inside an Uberverse comprised of many Multiverse bubbles?
I love the idea of a Multiverse, but in my opinion it does not solve the issue of creation or even really get us closer to understanding it. All we do is pass the buck on.