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How universe really started and will it finally end?
The universe started with a big bang no doubt starting an expansion cycle that will last for trillions of years. The universe is in its infancy. The universe really had sprung from an initial Big Bang some 15 billion years ago. The matter isn''t spread evenly through the modern universe. Galaxies tend to huddle relatively close to one another, dozens or even hundreds of them in clumps known as clusters and superclusters. In between, there is essentially nothing at all.
But the bigger question is how will it end? According to the conventional science, by the time the universe is 1 trillion trillion trillion trillion trillion trillion trillion years old, the black holes themselves will disintegrate into stray particles, which will bind loosely to form individual "atoms" larger than the size of today's universe. Eventually, even these will decay, leaving a featureless, infinitely large void. But that theory is being challenged now.
According to some scientists, the reverse big bang can happen anytime now. The reverse big bag will create a massive implosion that will everything bring back to a point source. The big happen will happen again. The contraction and expansion cycle is happening for an infinite time.
To keep time and space continuum intact, the next expansion will happen with the exact same happening that happened this time. That means we will be living our living again and again for millions of time to come. Can there be even a slight variation in the next expansion after the next big bang? Not quite, say scientists, unless something we just cannot conceive intervenes.
We live the same again and again. That is why it is so important we live it right the first time.
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