The Parallel Universe Theory

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There have been many theories on a parallel universe, which means there is also a second world with the exact places and space with us.

Physicists have performed an experiment that suggests time in our Universe may be directed by gravity, not thermodynamics, and that the Big Bang could have created two parallel universes – our own, in which time runs forwards, and a mirror one where time runs backwards.

Although the idea sounds pretty out there, the new hypothesis could help physicists solve some of their biggest issues with time – mainly the fact that they still can’t work out why it runs in only one direction.

In 1954, a young Princeton University doctoral candidate named Hugh Everett III came up with a radical idea: That there exist parallel universes, exactly like our ­universe. These universes are all related to ours; indeed, they branch off from ours, and our universe is branched off of others.

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Within these parallel universes, our wars have had different outcomes than the ones we know. Species that are extinct in our universe have evolved and adapted in others. In other universes, we humans may have become extinct.

The root of the dilemma is the fact that all of the fundamental laws of physics – such as Einstein’s special and general relativity and Newton’s gravitation – work just as well if time is flowing forwards or backwards.

In models of physical systems, which physicists use to mimic our Universe, a preferred direction of time does sometimes arise, but this typically only happens when researchers tinker with the system and set specific starting conditions.

The research, which also involved Tim Koslowski from the University of New Brunswick and Flavio Mercati of the Perimeter Institute for Theoretical Physics, both in Canada, and was published in October in Physical Review Letters.

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Their model suggests that the Universe doesn’t need a special, low-entropy initial state in order for it to define an arrow of time – instead, the flow of time is just the inevitable result of gravity.

They came to this conclusion after studying a very simple model of our Universe comprised of just 1,000 particles. Using computer simulations, they tested how these particles interacted under nothing but the influence of the laws of Newtonian gravity.

The universe is a hologram and everything you can see – including this article and the device you are reading it on – is a mere projection.

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According to the theory, gravity in the universe comes from thin, vibrating strings.

The holographic principle suggests that, like the security chip on a credit card for example, there is a two-dimensional surface that contains all the information needed to describe a three-dimensional object – which in this case is our universe.

In essence, the principle claims that data containing a description of a volume of space – such as a human or a comet – could be hidden in a region of this flattened, ‘real’ version of the universe.


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