heka2015
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- If you believe in the Multiverse, or whatever your name for it is, which one of these nine types of parallel universes of Brian Greenes classification scheme would it be?
- Most importanly how would Time Travel fit in it?
- Is it really Time Travel you would do in your Multiverse?
I am just curious about the common opinion on this.
Would be great if anybody participates.
Not exluding those who reach their decision, which Multiverse should be the real one, any other way.
Please share.
Brief explanation of the nine types Green proposes (Wiki-info):
Quilted
Inflationary
Brane
Cyclic
Landscape
Quantum
Holographic
Simulated
Ultimate
- Most importanly how would Time Travel fit in it?
- Is it really Time Travel you would do in your Multiverse?
I am just curious about the common opinion on this.
Would be great if anybody participates.
Not exluding those who reach their decision, which Multiverse should be the real one, any other way.
Please share.
Brief explanation of the nine types Green proposes (Wiki-info):
Quilted
The 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.
The inflationary multiverse is composed of various pockets in which inflation fields collapse and form new universes.
The brane multiverse version postulates that our entire universe exists on a membrane (brane) which floats in a higher dimension or "bulk". In this bulk, there are other membranes with their own universes. These universes can interact with one another, and when they collide, the violence and energy produced is more than enough to give rise to a big bang. The branes float or drift near each other in the bulk, and every few trillion years, attracted by gravity or some other force we do not understand, collide and bang into each other. This repeated contact gives rise to multiple or "cyclic" big bangs. This particular hypothesis falls under the string theory umbrella as it requires extra spatial dimensions.
The cyclic multiverse (via the ekpyrotic scenario) has multiple branes (each a universe) that have 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.
The landscape multiverse relies on string theory's Calabi–Yau spaces. Quantum fluctuations drop the shapes to a lower energy level, creating a pocket with a set of laws different from that of the surrounding space.
The quantum multiverse creates a new universe when a diversion in events occurs, as in the many-worlds interpretation of quantum mechanics.
The holographic multiverse is derived from the theory that the surface area of a space can simulate the volume of the region.
The simulated multiverse exists on complex computer systems that simulate entire universes.
The ultimate multiverse contains every mathematically possible universe under different laws of physics.
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