Cosmology; Hawking's theory of a beginning (Introduction)

by David Turell , Saturday, March 03, 2018, 18:57 (2244 days ago) @ David Turell

Basically there is no 'before' before the Big Bang. This is a 15+ year old theory championed by Alan Guth et. al.:

https://www.livescience.com/61914-stephen-hawking-neil-degrasse-tyson-beginning-of-time...

"Hawking's answer to the question "What was there before there was anything?" relies on a theory known as the "no-boundary proposal.

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"As scientists know now, the universe is constantly expanding. As you move backward in time, then, the universe contracts. Rewind far enough (about 13.8 billion years), and the entire universe shrinks to the size of a single atom, Hawking said.

"This subatomic ball of everything is known as the singularity (not to be confused with the technological singularity during which artificial intelligence will overtake humans). Inside this extremely small, massively dense speck of heat and energy, the laws of physics and time as we know them cease to function. Put another way, time as we understand it literally did not exist before the universe started to expand. Rather, the arrow of time shrinks infinitely as the universe becomes smaller and smaller, never reaching a clear starting point.

"According to TechTimes, Hawking says during the show that before the Big Bang, time was bent — "It was always reaching closer to nothing but didn't become nothing," according to the article. Essentially, "there was never a Big Bang that produced something from nothing. It just seemed that way from mankind's point of perspective."

"In in a lecture on the no-boundary proposal, Hawking wrote: "Events before the Big Bang are simply not defined, because there's no way one could measure what happened at them. Since events before the Big Bang have no observational consequences, one may as well cut them out of the theory, and say that time began at the Big Bang." (my bold)

"This isn't the first time Hawking has discussed this theory. He previously delivered lectures on the topic and starred in a free documentary about it, available on YouTube.

Comment: If time began at the Big Bang (that is the time of our reality) it looks like a creation to us. Of course, scientists can't bring in God as creator, but it is a piece of the evidence for God.