String theory likely holds the secret to the magnitude of our universe ~ which is probably actually a “multiverse,” according to physicist Brian Greene.

“You almost can't avoid having some version of the multiverse in your studies if you push deeply enough in the mathematical descriptions of the physical universe,” Greene tells NPR. “There are many of us thinking of one version of parallel universe theory or another. If it's all a lot of nonsense, then it's a lot of wasted effort going into this far out idea. But if this idea is correct, it is a fantastic upheaval in our understanding.”

Greene believes the key to understanding these multiverses comes from string theory, the area of physics he's studied for the past 25 years.

According to NPR:

In a nutshell, string theory attempts to reconcile a mathematical conflict between two already accepted ideas in physics: quantum mechanics and the theory of relativity.

“Einstein's theory of relativity does a fantastic job for explaining big things,” Greene says. “Quantum mechanics is fantastic for the other end of the spectrum ~ for small things. The big problem is that each theory is great for each realm, but when they confront each other, they are ferocious antagonists and the mathematics falls apart.”

String theory smoothes out the mathematical inconsistencies that currently exist between quantum mechanics and the theory of relativity. It posits that the entire universe can be explained in terms of really, really small strings that vibrate in 10 or 11 dimensions ~ meaning dimensions we can't see. If it exists, it could explain literally everything in the universe ~ from subatomic particles to the laws of speed and gravity.

Greene, the author of

*The Elegant Universe*and*The Fabric of the Cosmos*, tackles the existence of multiple universes in his latest book*The Hidden Reality: Parallel Universes and the Deep Law of the Cosmos*.
## 3 comments:

this also explains where all my missing socks are. flippancy aside, this makes sense.

Hahaha, funny! Thanks for visiting, SOMH.

well yes a parallel universe exists but not the multiple.By the quantum physists Stern and Garlech from their experiment:-

All particles are deflected either equally upwards or equally downwards in a 50:50 ratio. There are no intermediate positions.

the orientation has no inherent existence. The attribute of orientation is utterly meaningless in the absence of an observer. The meaning of the orientation is projected by the observer's mind. If the observer projects the up/down axis of orientation on a stream of particles then that is the way that they will all be sorted. If any other direction is chosen then they will be sorted along that axis. Quantum theory does not appear to allow any fundamental distinction between the mind of the observer and what is being observed.

this shows three universe one of the observer, second in which we are living the other which is parallel to us (the division of the particle is in 50: 50 ratio). n then according to the mathematics there is always equal n opposite number is present to balance everything so this parallel universe is contracting if our universe is expanding as by big bang theory n in this parallel world there is everything exactly duplicate of our universe but in opposite direction or to say _ve of our universe,n this universe's contraction is limitless as our as our universe expantion is limitless n then there is third universe of the observer due to which this "big bang" theory came into existance but then here comes one more question from where is observer came(he/she god?)but there is no such thing, perhaps there is more observer for "this observer" then there is another one for that observer then... it goes on n on n nobody knows where it started where it will finish or if law of mathematics apply to our these two universes then it should be for the universe of the observer too? so it means only the observer universe is in multiple quantity not our we have only two world one + and the other is _

Neelam Sinha (india)

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