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Stephen Hawking explains what happened before Big Bang

    Abdulaziz Sobh
    By Abdulaziz Sobh

    Categories: Science


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    So, there was this chicken, okay? And then there was this egg.
    No, wait. There was this egg, you see. And then there was this chicken.
    It is easy to see many scientific theories like trusting a decision about when something started. The universe, for example.
    We've heard a lot about the Big Bang. It is the moment when something incredibly small began to grow over the next billion years to become the universe we know (at least partially) today.
    But what was there before? Anything? Nothing? Some small and inaudible explosions?
    Neil deGrasse Tyson, on his "Star Talk" show, sat down with his physical partner Stephen Hawking and asked for his opinion.
    Hawking offered a simple and direct answer.
    "There was nothing before the Big, Big Bang," Hawking said.
    He explained that Einstein's theory of relativity insists that space and time form a continuum curved by matter and energy in it.
    For Hawking, therefore, the beginning of the universe is best described with a Euclidean approach.
    "Ordinary real time is replaced by imaginary time," he said. Honestly, that happens to me all the time. I imagine that time has passed at a certain pace, only to discover that I have been imagining things.
    For Hawking, however, imaginary time "behaves like a fourth direction of space." He and Euclid believe that imaginary time is a "four-dimensional curved surface like the surface of the Earth, but with two more dimensions".
    Six dimensions, then?
    The universe, Hawking insisted, has no limits. Yes, it's like true love.
    In essence, the curved surface that is spacetime can be compared to our own little planet.
    "One can consider that imaginary and real-time begins at the South Pole, which is a smooth point of space-time where the normal laws of physics are held in. There is nothing south of the South Pole, so there was nothing before the Big Bang, "Hawking said.
    It is a soft argument. However, because we are simple humans, it is difficult for us to define and explain an infinite potential that we do not fully understand.
    Astronomers work hard to detect what might have happened shortly after the Big Bang. Only a few days ago, they detected signs that bear a trace of some of the first stars that were born.
    Still, I can not help but detect over the years that humans are much less bright than they think they are. There is too much we do not know because there is too much that we have not experienced and we tend to see so many things from a perspective centered on the human being.
    Perhaps, one day soon, the aliens will descend on us to inform us that our ideas of physics are ridiculously rudimentary and that we do not understand the existence of another thousand dimensions of life, the Universe, and everything.
    On the other hand, another famous physicist, Michio Kaku, believes that we should get away completely from the aliens.