What Came Before the Big Bang? Science Has a New Answer.

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Science's biggest question now has a new approach. Find out how numerical relativity is rewriting the history of the universe. What if the Big Bang wasn't the beginning? Discover the cyclic universe theory and how we might prove its existence. The most advanced technology joins cosmology. Supercomputers are becoming the tool to explore what, until now, was impossible. #NumericalRelativity  #BigBangRevealed  #CuttingEdgeCosmology

Transcript

00:00Unveiling the Secrets of the Big Bang

00:02What came before the Big Bang?

00:04For a long time, this question was considered meaningless by scientists.

00:08When wound backward in time, Einstein's equations of relativity lead us to a singularity,

00:13a point of infinite density and temperature where the laws of physics collapse.

00:18It's as if the universe itself is telling us we can't see beyond that limit.

00:22The problem lies in a fundamental assumption that the universe is homogeneous and isotropic,

00:27meaning it looks the same in every direction.

00:30While this idea holds for the universe today,

00:33it may not be true for the extreme conditions of the Big Bang.

00:36Cosmologist Eugene Lim explains it this way.

00:39It s as if we can only look where there s light near the lamppost,

00:44but not in the vast areas of darkness.

00:46But now there's a way out of that darkness.

00:49It's called numerical relativity,

00:51a technique that uses supercomputers to simulate and solve Einstein's equations in extreme scenarios,

00:57such as the collision of black holes.

00:59This idea, first proposed in the 1960s,

01:02has been boosted by technological advances like the LIGO experiment,

01:06which opened a new horizon for cosmology.

01:09Thanks to this approach,

01:10scientists are seeking to solve the universe's greatest mysteries.

01:13One is cosmic inflation,

01:15the period of ultra-rapid expansion that occurred shortly after the Big Bang.

01:20Numerical relativity could help test fundamental theories like string theory

01:23and discover what caused that explosive growth.

01:26It could also help find evidence for the existence of the multiverse

01:30by looking for signatures or bruises left by the collision of our universe with others.

01:35It could even confirm the existence of cosmic strings,

01:38defects in the fabric of space-time,

01:40by calculating the gravitational waves they would generate.

01:44But the most fascinating challenge is, without a doubt,

01:47finding out if there was anything before the Big Bang.

01:50This new technique could reveal whether our universe is part of a cosmic cycle,

01:54a series of bounces where an old universe gives rise to a new one

01:58in an eternal dance of Big Bangs and Big Crunches.

02:02Solving this puzzle requires a computing power we are only now beginning to have.

02:07As supercomputers become more powerful,

02:09so does our ability to unravel the deepest secrets of the cosmos.

02:14Numerical relativity is the bridge that connects cosmology with advanced technology,

02:20leading us to a future where questions once thought unanswerable

02:23can finally have a solution.

02:26Money expires

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