WHAT’S BEING CLAIMED:
- World-renowned theoretical physicist Stephen Hawking says he knows what happened before the Big Bang.
- Hawking said on National Geographic that the universe has no boundary.
- The famous physicist delivered lectures before on the topic and also appeared in a free documentary about it.
Appearing at the National Geographic’s Star Talk show this weekend, Hawking tells fellow physicist Neil deGrasse Tyson that “amid the almost infinitely small quantum foam of the singularity before the Big Bang, time existed in a ‘bent’ state.”
“The boundary condition of the universe … is that it has no boundary,” Hawking said.
“All the evidence seems to indicate, that the universe has not existed forever, but that it had a beginning, about 15 billion years ago,” he added.
“There must have been a beginning. Otherwise, the universe would be in a state of complete disorder by now, and everything would be at the same temperature, “Hawking further explained. “In an infinite and everlasting universe, every line of sight would end on the surface of a star. This would mean that the night sky would have been as bright as the surface of the Sun. The only way of avoiding this problem would be if, for some reason, the stars did not shine before a certain time.”
“The density would have been infinite,” he says. “It would have been what is called, a singularity. At a singularity, all the laws of physics would have broken down. This means that the state of the universe, after the Big Bang, will not depend on anything that may have happened before, because the deterministic laws that govern the universe will break down in the Big Bang.”
“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,” Hawking says on the no-boundary proposal lecture.
Hawking’s perception has previously been proven correct. This isn’t his first lecture about this theory.
So there never was a Big Bang that created something from nothing. But, like the strange behavior of quantum physics, perhaps time has a lot more left to tell, news.com.au wrote.
Source: Fox News