Which of the multiple multiverse models seems most fitting to you?
January 7, 2016 at 2:20 pm
(This post was last modified: January 7, 2016 at 2:22 pm by Whateverist.)
Was just browsing the web for anything on the multiverse and settled into wiki where I found Brian Greene's list of nine ways to conceptualize a multiverse. I won't pretend to understand them all. The Inflationary multiverse is the one that seems most intuitive to me.
I hear others say things which make me think they subscribe to the Quilted multiverse where every possible event is actualized in some universe or other. That doesn't seem at all likely to me but I'd like to hear why anyone else thinks it is so. I take it that a Quantum multiverse and Ultimate multiverse are similar notions.
My imagination shuts down around talk of more than three spatial dimensions. So I don't know what to make of a Landscape, Cyclic or Brane multiverse.
The other two, Holographic and Simulated multiverses, seem to have more to do with imaging than with the multiverse itself. Although I suppose lovers of the Matrix movie might like them.
I'd be interested in hearing from anyone who finds one or another of these a useful way to think about everything. Is there anyone who believes that the cosmic background radiation represents the limits of everything there is or ever will be? Admittedly no one is in any favorable position to say authoritatively what the disposition of everything actually is, but I am curious to get a sense of people's thinking.
https://en.wikipedia.org/wiki/Multiverse
I hear others say things which make me think they subscribe to the Quilted multiverse where every possible event is actualized in some universe or other. That doesn't seem at all likely to me but I'd like to hear why anyone else thinks it is so. I take it that a Quantum multiverse and Ultimate multiverse are similar notions.
My imagination shuts down around talk of more than three spatial dimensions. So I don't know what to make of a Landscape, Cyclic or Brane multiverse.
The other two, Holographic and Simulated multiverses, seem to have more to do with imaging than with the multiverse itself. Although I suppose lovers of the Matrix movie might like them.
I'd be interested in hearing from anyone who finds one or another of these a useful way to think about everything. Is there anyone who believes that the cosmic background radiation represents the limits of everything there is or ever will be? Admittedly no one is in any favorable position to say authoritatively what the disposition of everything actually is, but I am curious to get a sense of people's thinking.
https://en.wikipedia.org/wiki/Multiverse
Quote:American theoretical physicist and string theorist Brian Greene discussed nine types of parallel universes:[46]
QuiltedThe quilted multiverse works only in an infinite universe. With an infinite amount of space, every possible event will occur an infinite number of times. However, the speed of light prevents us from being aware of these other identical areas.
InflationaryThe inflationary multiverse is composed of various pockets where inflation fields collapse and form new universes.
BraneThe brane multiverse follows from M-theory and states that our universe is a 3-dimensional brane that exists with many others on a higher-dimensional brane or "bulk". Particles are bound to their respective branes except for gravity.
CyclicThe cyclic multiverse (via the ekpyrotic scenario) has multiple branes (each a universe) that collided, causing Big Bangs. The universes bounce back and pass through time, until they are pulled back together and again collide, destroying the old contents and creating them anew.
LandscapeThe landscape multiverse relies on string theory's Calabi–Yau shapes. Quantum fluctuations drop the shapes to a lower energy level, creating a pocket with a different set of laws from the surrounding space.
QuantumThe quantum multiverse creates a new universe when a diversion in events occurs, as in the many-worlds interpretation of quantum mechanics.
HolographicThe holographic multiverse is derived from the theory that the surface area of a space can simulate the volume of the region.
SimulatedThe simulated multiverse exists on complex computer systems that simulate entire universes.
UltimateThe ultimate multiverse contains every mathematically possible universe under different laws of physics.