The Beginning of Time
The conclusion of this lecture is that the universe has not existed forever. Rather, the universe, and time itself, had a beginning in the Big Bang, about 15 billion years ago. The beginning of real time, would have been a singularity, at which the laws of physics would have broken down. Nevertheless, the way the universe began would have been determined by the laws of physics, if the universe satisfied the no boundary condition. This says that in the imaginary time direction, space-time is finite in extent, but doesn't have any boundary or edge. The predictions of the no boundary proposal seem to agree with observation. The no boundary hypothesis also predicts that the universe will eventually collapse again. However, the contracting phase, will not have the opposite arrow of time, to the expanding phase. So we will keep on getting older, and we won't return to our youth. Because time is not going to go backwards, I think I better stop now.
- from "The Beginning of Time", a lecture given by Stephen Hawking
im in the process of reading his newest book, "The Theory of Everything", it talks about black holes and the birth of our grand universe. i suggest that if you are anywhere interested in anything at all, ask me if you can bowwor this book, you will love it. go out and learn something!
-G
hawking
- from "The Beginning of Time", a lecture given by Stephen Hawking
im in the process of reading his newest book, "The Theory of Everything", it talks about black holes and the birth of our grand universe. i suggest that if you are anywhere interested in anything at all, ask me if you can bowwor this book, you will love it. go out and learn something!
-G
hawking
