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My Comment on Stephen Hawking’s “Why God Did Not Create the Universe”

by Dr. Robert Piccioni
October 3, 2010

Stephen Hawking’s latest book was announced with much fan-fare. The most informative article that I saw about it was in the Wall Street Journal, which had the title shown above. Many people have asked me about this—it’s now the first question at most of my talks. So, here are my thoughts. More complete explanations can be found in sources listed at the end of this newsletter.

Stephen Hawking

Firstly, what was reported in no way proves or disproves the existence of God. Hawking may believe that he knows how the universe was created, but it’s impossible for him or anyone else to prove that creation did not involve God. The existence of God is beyond the realm of science to measure or compute, and will always remain a matter of faith. In the absence of direct evidence, it is inappropriate for any scientist to claim he's proven something based solely on his personal belief. Making such a provocative claim, apparently for purely commercial purposes, is particularly improper. It is a disservice to science and to society, and is a blemish on an otherwise spectacular scientific career.

Secondly, as reported, Hawking’s new book contains no new science—the multiverse is a rather old idea.

For many decades, most scientists have believed that everything we can see and detect, our “observable universe”, is probably not all that exists. There is no direct evidence for this (how could there be direct evidence of something that is undetectable?). Nonetheless, most scientists believe something lies beyond the limits of our observable universe, probably an extension of our own universe.

Since the early 1970’s, American physicist Alan Guth and Russian (now American) physicist Andre Linde have proposed the spontaneous creation of our universe and an unlimited number of other universes. Linde calls it “Eternal Inflation”. Cosmologists use the word “multiverse” to describe this vast (or even infinite) collection of universes. Again, there is no direct evidence of the multiverse, or even of one other, entirely separate universe, but many people find the idea appealing.

Other universes might be very different from ours, with different values of the 20 “knobs” that determine critical physical parameters. They might have a different initial expansion rate, a different amount of antimatter, a different proton mass, etc. Most cosmologists agree that in our universe these knobs seem set to the precise values required to enable life, and that other universes with even modestly different knob settings would probably not contain any form of life whatsoever. Knowing this, many people, scientists and non-scientists alike, wonder how our universe came to have exactly the knob settings that life requires.

The multiverse is the ultimate “rug”, under which Hawking sweeps all the wonders and mysteries of the cosmos. With an infinite number of universes, no matter how unlikely the right settings are there might still be an infinite number of habitable universes. But, infinity is often not so straightforward. An infinite sequence does not necessarily encompass all possibilities. An infinite series of numbers can add up to zero—in fact, there are an infinite number of infinite series that do add up to zero. Historically, every time a physics theory has come up with an answer of infinity, it has been wrong.

Hawking says the multiverse nullifies all questions—we don’t need God or a Theory of Everything to explain the universe, because there is no explanation—it’s all just a crapshoot. There is no Great Truth or Grand Design, religious or scientific, to pursue—everything is merely an accident. If true, there would be no reason to further employ scientists like Hawking to search for profound cosmic truths that he says don’t exist. Historically, many people, including scientists, said there was nothing more to discover, and they were always wrong.

I can’t disprove Hawking, but I find his notion profoundly depressing. It reminds me of what another famous cosmologist once said: we are but a carbonaceous smear on an insignificant rock orbiting an ordinary star in an unremarkable galaxy.

I see all the same facts and come to a completely different conclusion.

Science has proven that we are the most remarkable wonder in the universe, made of the rarest and most precious ingredients, living on an incredible planet, orbiting an ideal star that was born in the right place at the right time, in a marvelous galaxy, and in a universe with perfect geometry.

With no definitive proof that a multiverse exists, or that it contains an infinite number of universes encompassing all possibilities, or that no Great Truth exists, whatever each of us chooses to believe is fundamentally an act of faith.

I choose optimism. I believe we have a wondrous future.
We are not at the end—we are at the threshold of a new beginning.

For more on the multiverse and “knobs” checkout:
• my online radio show titled: “Can Life Be Merely An Accident?”
• chapter 9 in my book Can Life Be Merely An Accident?
• chapter 40 in my book Everyone’s Guide to Atoms, Einstein, and the Universe
All of these can be referenced through my website www.guidetothecosmos.com.

Or feel free to email me.

Enjoy Exploring.

Best Regards,
Robert

Dr Robert Piccioni,
Author of "Everyone's Guide to Atoms, Einstein, and the Universe"
and "Can Life Be Merely An Accident?"

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www.guidetothecosmos.com