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Nernico
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What was there before Big Bang? Cosmologists suggested that there was quantum vacuum, but what was there before quantum vacuum? From where did quantum vacuum came? And why was there a quantum vacuum rather than nothing?
Nernico said:What was there before Big Bang? Cosmologists suggested that there was quantum vacuum, but what was there before quantum vacuum? From where did quantum vacuum came? And why was there a quantum vacuum rather than nothing?
Nernico said:Beyond our universe is there something infinitely? And how can energy exist eternally without ever being brought into existence?
We actually don't know whether the universe is spatially infinite: https://www.physicsforums.com/showthread.php?t=506986Nernico said:Then the whole and infinite space
Not sure what you mean by "infinitely occupied?"Nernico said:is infinitely occupied by something ?
What do you mean by "beyond our universe?" The universe doesn't have an edge.Nernico said:Beyond our universe is there something infinitely?
What makes you think that things have to be brought into existence in order to exist?Nernico said:And how can energy exist eternally without ever being brought into existence?
Well, it isn't necessarily wrong. There are basically two different avenues that I have seen in investigating what might have been before our universe. One is some sort of cyclic universe. This includes ideas like loop quantum cosmology and the ekpyrotic universe.bcrowell said:I think you've misunderstood something about the quantum vacuum. You seem to be visualizing it as a kind of empty space that predated the big bang. That isn't right.
The Big Bang theory is the prevailing cosmological model for the observable universe. It explains the origins of the universe and how it has evolved over time, including the expansion of space and the formation of galaxies and other celestial bodies.
The concept of "before" the Big Bang is difficult to define because time and space as we know it did not exist prior to the event. Some theories suggest that there could have been a different state of the universe before the Big Bang, while others argue that the Big Bang was the beginning of time itself.
The Big Bang did not create the universe from nothing. It is believed that the universe was in a highly dense and hot state before the Big Bang and expanded rapidly during the event. The exact cause of the Big Bang is still a topic of debate among scientists.
There are several pieces of evidence that support the Big Bang theory, including the cosmic microwave background radiation, the abundance of light elements in the universe, and the observed expansion of the universe. Additionally, the Big Bang theory is able to explain various observed phenomena, such as the redshift of galaxies and the distribution of galaxies in the universe.
It is currently impossible to know for certain what happened before the Big Bang, as there is no way to observe or measure anything that existed before the event. However, scientists continue to study and develop theories about the origins of the universe in hopes of gaining a better understanding of the events that led to the Big Bang.