What Chances Does Life In Multiverse Have?

Multiverse concept image

Multiverse concept image

The team points out that these results deepen the "frustrating puzzle" of why our universe has such low amounts of dark energy considering that, as per the simulations, this isn't necessarily a prerogative for life to emerge. But now an worldwide team of researchers has demonstrated that the Multiverse is more hospitable than we thought.

According to the current dominant theory, if there are other universes out there, they're not likely to have life. The team produced simulations using the Evolution and Assembly of GaLaxies and their Environments (EAGLE) project, which is one of the most comprehensive simulations of the observed universe.

"The multiverse theory suggests that our universe is only one of many, baby universes being born like bubbles in a bigger multiverse with a wide range of physical laws and fundamental constants", Jaime Salcido, a postgraduate student at Durham's Institute for Computational Cosmology, told Newsweek.

Interestingly, Stephen Hawking's final paper, posthumously published earlier this month, also steps back somewhat from the multiverse theory, of which he was once a huge proponent.

Dark energy has been calculated to account for more than 68 percent of the contents of the universe.

Hypothesis 1980-ies about the Multiverse provides that our universe, which is only one of many, is able to reveal the secret of the right amount of dark matter, which influenced the origin of life.

According to the research, if would like to expect to notice much more dark energy than we do, if we live in a Multiverse -it would be 50 times more than we observe in our universe. It is thought that if we lived in a universe with too much dark energy, space might expand faster than galaxies could possibly form. "This is a problem for the multiverse; a puzzle remains", Luke Barnes, a research fellow at Western Sydney University, Australia, and coauthor of the paper, said in the statement.

Across several experiments, an global team of researchers from England, Australia and the Netherlands used a program called Evolution and Assembly of Galaxies and their Environmentsto simulate the birth, life and eventual death of various hypothetical universes. From many stimulations, it has been found that other universes with much more value of dark energy than our universe can easily form stars and planets.

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The global team of scientists made this discovery after creating a model of the universe using the tools of the EAGLE project (Evolution and Assembly of GaLaxies and their Environments) - one of the most realistic simulations of the observed universe, which encompasses models for around 10,000 galaxies over a distance of 300 million light-years.

"Our work shows that our ticket seems a little too lucky, so to speak", he continued. "Our simulations showed that the accelerated expansion driven by dark energy has hardly any impact on the birth of stars, and hence places for life to arise".

The good news: Even in universes with 300 times as much dark energy as ours, life found a way.

The simulations allowed the researchers to adjust the amount of dark energy in the universe and watch what happened. "Even increasing dark energy many hundreds of times might not be enough to make a dead universe".

The new computer simulations show that with the increase in dark energy, the chances of life have also skyrocketed.

"We asked ourselves how much dark energy can there be before life is impossible?" explained Dr. Pascal Elahi, from the University of Western Australia.

Although the results do not rule out the Multiverse, it seems that the tiny amount of dark energy in our Universe would be better explained by an, as yet, undiscovered law of nature. "I think we should be looking for a new law of physics to explain this odd property of our universe, and the multiverse theory does little to rescue physicists' discomfort".

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