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Monday, December 9, 2013
Purple State Of Mind News
Tracking Purple State of Mind across America…
A new book by Professor Stephen W. Hawking, the one and only Hawking, appears to have launched a new round in the debates over science and god. Here’s an excerpt from an article on Hawking’s theory in the Hindu:
“In his new book, Stephen Hawking reiterates that there is no big gap in the scientific account of the big bang. The laws of physics can explain, he says, how a universe of space, time and matter could emerge spontaneously, without the need for God. And most cosmologists agree: we don’t need a god-of-the-gaps to make the big bang go bang. It can happen as part of a natural process. A much tougher problem now looms, however. What is the source of those ingenious laws that enable a universe to pop into being from nothing? Traditionally, scientists have supposed that the laws of physics were simply imprinted on the universe at its birth, like a maker’s mark. As to their origin, well, that was left unexplained.”
You can find the book The Grand Design, co-authored with Leonard Mlodinow, here at Amazon.
Here’s a Washington Post review.
And an excerpt of the review, if you can’t wait:
“Why is there something instead of nothing?
Why do we exist?
Why does this particular set of laws govern our universe and not some other set?
Deep stuff, indeed. In the first chapter, Hawking and Mlodinow launch into an accessible and elegant history of the progression of scientific knowledge from the Greeks to modern cosmology. As is customary in such treatments, the authors point out the significance of certain milestones. The first of these, the realization by the Ionian Greeks that nature could be explained by laws rather than by the whims of the gods, is really the start of modern science. The second, the discovery by Copernicus that the Earth is not at the center of the universe, opened the door for a realistic exploration of our solar system and, later, our galaxy and universe.”
And then this:
“With that background, Hawking and Mlodinow get to the real meat of their book: the way theories about quantum mechanics and relativity came together to shape our understanding of how our universe (and possibly others) formed out of nothing. Our current best description of the physics of this event, they explain, is the so-called “M-theories,” which predict that there is not a single universe (the one we live in) but a huge number of universes. In other words, not only is the Earth just one of several planets in our solar system and the Milky Way one of billions of galaxies, but our known universe itself is just one among uncounted billions of universes. It’s a startling replay of the Copernican Revolution.
The conclusions that follow are groundbreaking. Of all the possible universes, some must have laws that allow the appearance of life. The fact that we are here already tells us that we are in that corner of the multiverse. In this way, all origin questions are answered by pointing to the huge number of possible universes and saying that some of them have the properties that allow the existence of life, just by chance.
I’ve waited a long time for this book. It gets into the deepest questions of modern cosmology without a single equation. The reader will be able to get through it without bogging down in a lot of technical detail and will, I hope, have his or her appetite whetted for books with a deeper technical content. And who knows? Maybe in the end the whole multiverse idea will actually turn out to be right!”
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