Dr. Barnes takes issue with Lawrence Krauss’ book about the origin of the universe, in which Krauss, an atheist and materialist, tries to explain how something came from nothing without God.
He writes:
Here is my argument. A: The state of physics at any time can be (roughly) summarised by three things.
1. A statement about what the fundamental constituents of physical reality are and what their properties are.
2. A set of mathematical equations describing how these entities change, move, interact and rearrange.
3. A compilation of experimental and observational data.
In short, the stuff, the laws and the data.
B: None of these, and no combination of these, can answer the question “why does anything at all exist?”.
C: Thus physics cannot answer the question “why does anything at all exist?”.
And here is his conclusion:
Now, why think that neither the stuff, the laws or the data or a combination can answer the question of why anything exists?
1 can’t do it: A statement of the basic constituents of reality, in and of itself, obviously cannot explain why such things exist, any more than the statement “the sky is blue” can explain why the sky is blue. So 1 is out.
2 can’t do it: Mathematical equations describe properties, and existence is not a property. 5 dollars plus 5 dollars equals 10 dollars, but that fact will not tell you how much money is actually in my account. The same is true for all mathematical equations, even the more sophisticated ones used by modern physics. Write down any equation you like – you will not be able to deduce from that equation that the thing it describes really exists. Mathematical equations are abstract entities, they have no causal powers. They can’t do anything, least of all jump off the blackboard and pull entities into existence. So the answer cannot be found in 2.
1 and 2 can’t do it: 1 and 2 together give a theoretical description of reality as we know it, so succumb to the same problems as 2 alone.
3 can’t do it: for the same reason that 1 can’t. The statement “I observed an electron strike a screen” cannot explain why there are electrons at all, and thus (a fortiori) cannot explain why anything exists at all.
1, 2 and 3 can’t do it: Sitting and staring at 1+2 on one hand, and 3 on the other, will tell you why we think that 1+2 really describes our universe. They account for the data, which is what science does. But once again we see no resources to attack the question of why anything at all exists. We’ve successfully described our universe. But that is all.
Thus, physics cannot answer the question “why does anything at all exist?”.
It is important to realise that no amount of progress in physics will change this situation. Imagine the final equation, the law of nature, written on a blackboard to thunderous applause. After the adoration dies down, we will still be faced with the question “why does a universe described by that equation actually exist?”.
I would like to add something that’s not essential to the science, but something I kind of believe, which is that you should not fool the layman when you’re talking as a scientist. I am not trying to tell you what to do about cheating on your wife, or fooling your girlfriend, or something like that, when you’re not trying to be a scientist, but just trying to be an ordinary human being. We’ll leave those problems up to you and your rabbi. I’m talking about a specific, extra type of integrity that is not lying, but bending over backwards to show how you’re maybe wrong, that you ought to have when acting as a scientist. And this is our responsibility as scientists, certainly to other scientists, and I think to laymen.
For example, I was a little surprised when I was talking to a friend who was going to go on the radio. He does work on cosmology and astronomy, and he wondered how he would explain what the applications of his work were. “Well,” I said, “there aren’t any.” He said, “Yes, but then we won’t get support for more research of this kind.” I think that’s kind of dishonest. If you’re representing yourself as a scientist, then you should explain to the layman what you’re doing– and if they don’t support you under those circumstances, then that’s their decision.
It seems to me that Dr. Barnes is acting on Dr. Feynman’s advice, while Lawrence Krauss, in writing a sensational book that attempts to mislead laymen about what science can and cannot do, is not.
I think that science is a good thing, and that it is helpful to theists. It strengthens the theistic hypothesis in many ways, especially with research about the Big Bang, research about cosmic fine-tuning, research about the origin of life and DNA, research about the fossil record and the Cambrian explosion, research in astrobiology and habitability, and so on.
One area where we can test the two religions is in the area of cosmology. What does each religion claim about cosmology?
First, let’s take a look at what the founder of Mormonism, Joseph Smith, believes about the origin of the universe:
“The elements are eternal. That which had a beggining will surely have an end; take a ring, it is without beggining or end – cut it for a beggining place and at the same time you have an ending place.” (“Scriptural Teachings of the Prophet Joseph Smith”, p. 205)
“Now, the word create came from the word baurau which does not mean to create out of nothing; it means to organize; the same as a man would organize materials and build a ship. Hence, we infer that God had materials to organize the world out of chaos – chaotic matter, which is element, and in which dwells all the glory. Element had an existance from the time he had. The pure principles of element are principles which can never be destroyed; they may be organized and re-organized, but not destroyed. They had no beggining, and can have no end.”
(“Scriptural Teachings of the Prophet Joseph Smith”, p. 395)
A Mormon scholar named Blake Ostler summarizes the Mormon view in a Mormon theological journal:
“In contrast to the self-sufficient and solitary absolute who creates ex nihilo (out of nothing), the Mormon God did not bring into being the ultimate constituents of the cosmos — neither its fundamental matter nor the space/time matrix which defines it. Hence, unlike the Necessary Being of classical theology who alone could not not exist and on which all else is contingent for existence, the personal God of Mormonism confronts uncreated realities which exist of metaphysical necessity. Such realities include inherently self-directing selves (intelligences), primordial elements (mass/energy), the natural laws which structure reality, and moral principles grounded in the intrinsic value of selves and the requirements for growth and happiness.” (Blake Ostler, “The Mormon Concept of God,” Dialogue: A Journal of Mormon Thought 17 (Summer 1984):65-93)
So, Mormons believe in an eternally existing universe, such that matter was never created out of nothing, and will never be destroyed.
What do the best Christian theologians believe about the origin of the universe?
“By what means did you make heaven and earth? What tool did you use for this vast work? You did not work as a human craftsman does, making one thing out of something else as his mind directs… Nor did you have in your hand any matter from which you could make heaven and earth, for where could you have obtained matter which you had not yet created, in order to use it as material for making something else? It must therefore be that you spoke and they were made. In your Word you created them.” (Augustine, Confessions 11.5.7.)
“As said above (Question 44, Article 2), we must consider not only the emanation of a particular being from a particular agent, but also the emanation of all being from the universal cause, which is God; and this emanation we designate by the name of creation. Now what proceeds by particular emanation, is not presupposed to that emanation; as when a man is generated, he was not before, but man is made from “not-man,” and white from “not-white.” Hence if the emanation of the whole universal being from the first principle be considered, it is impossible that any being should be presupposed before this emanation. For nothing is the same as no being. Therefore as the generation of a man is from the “not-being” which is “not-man,” so creation, which is the emanation of all being, is from the “not-being” which is “nothing”.” (Summa Theologica, part 1, question 45)
“Let this, then, be maintained in the first place, that the world is not eternal, but was created by God.” (John Calvin, Genesis)
“We firmly believe and simply confess that there is only one true God … the Creator of all things visible and invisible, spiritual and corporeal; who from the very beginning of time by His omnipotent power created out of nothing both the spiritual beings and the corporeal.” (The Fourth Lateran Council of 1215)
So who is right? Has the universe always existed or did it come into being out of nothing?
Breaking the tie
To break the tie, we must use the ordinary tools of investigation – logic, science, historical methods, and so on. Let’s use science this time.
The standard Big Bang model thus describes a universe which is not eternal in the past, but which came into being a finite time ago. Moreover,–and this deserves underscoring–the origin it posits is an absolute origin ex nihilo. For not only all matter and energy, but space and time themselves come into being at the initial cosmological singularity. As Barrow and Tipler emphasize, “At this singularity, space and time came into existence; literally nothing existed before the singularity, so, if the Universe originated at such a singularity, we would truly have a creation ex nihilo.“
[…]On such a model the universe originates ex nihilo in the sense that at the initial singularity it is true that There is no earlier space-time point or it is false that Something existed prior to the singularity.
Christian cosmology requires such a creation out of nothing, but this is clearly incompatible with what Mormons believe about the universe. The claims about the universe made by the two religions are in disagreement, and we can test empirically to see who is right, using science.
The historical evidence
You can find other disagreements between Christianity and Mormonism, if you are not so busy putting on make-up like politicians and journalists are. For example, Christianity is monotheistic (one God) and Mormonism is polytheistic (many gods). That means Mormonism is more like Hinduism than it is like Christianity – Mormonism and Hinduism even agree on the eternally oscillating universe. You can read all about it, with citations from Mormon scholars, in this article, authored by Baylor University professor Francis J. Beckwith. Or you could take a look at the history of Mormonism, and see if the claims made in the religious texts of Mormonism are historical. Or you could take a look at the prophetic claims of the founder of Mormonism and see if they were accurate.
Here’s an examination of the historical basis for the Mormon Scriptures, for example:
This is how responsible people evaluate religions to see whether they are all the same as the others, and, more importantly, if one is true. The point of religion is not to make people feel good, or to make them have a sense of community. The point of religion is to know how we got here, where we are going, and what we are supposed to be doing – as matters of fact.
As long as you don’t assume, before doing any research, that all religions are the same, and that all of their claims are equally untestable, then you can actually investigate things and come to some conclusions. Investigating is good, but watching debates with different views that feature public, testable evidence is also a good idea. The important thing is that you are serious about evaluating the testable claims of different religions, and that you don’t assume that choosing a religion is just like taste in clothes or taste in food, which varies by time and place and is really not making objective propositional claims about reality, instead of subjective claims about individual tastes and preferences. Just because you were born into a country that believed that the Earth was flat (or round) that wouldn’t take away the obligation on you to test those views and go looking at other views using the tools of logic, science and historical analysis.
Victor Stenger is a famous “Internet Infidel” atheist, but what makes him different is that he is has a PhD in physics. He wrote a book published by the atheist publisher Prometheus Press where he explains why he thinks that the universe is not fine-tuned for embodied sentient life.
An Australian physicist named Luke Barnes decided to write a response to his book, and the response is summarized (without the math!) on Uncommon Descent. Barnes has a PhD in Astronomy from Cambridge. He did postdoctoral research in Switzerland at the Institute for Astonomy, and now he is doing more postdoctoral research at the University of Sydney . The response that he wrote does not talk about God, or explanations of why the fine-tuning happened. I have no idea where his convictions are on any of that, because his response just talks about the fine-tuning itself from a scientific point of view.
Professor Victor Stenger is an American particle physicist and a noted atheist, who popularized the phrase, “Science flies you to the moon. Religion flies you into buildings”. Professor Stenger is also the author of several books, including his recent best-seller, The Fallacy of Fine-Tuning: How the Universe is Not Designed for Humanity (Prometheus Books, 2011). Stenger’s latest book has been received with great acclaim by atheists: “Stenger has demolished the fine-tuning proponents,” writes one enthusiastic Amazon reviewer, adding that the book tells us “how science is able to demonstrate the non-existence of god.”
Well, it seems that the great Stenger has finally met his match. Dr. Luke A. Barnes, a post-doctoral researcher at the Institute for Astronomy, ETH Zurich, Switzerland, has written a scathing critique of Stenger’s book. I’ve read refutations in my time, but I have to say, this one is devastating.
In his paper, Dr. Barnes takes care to avoid drawing any metaphysical conclusions from the fact of fine-tuning. He has no religious axe to grind. His main concern is simply to establish that the fine-tuning of the universe is real, contrary to the claims of Professor Stenger, who asserts that all of the alleged examples of fine-tuning in our universe can be explained without the need for a multiverse.
Dr. Barnes’ ARXIV paper, The Fine-Tuning of the Universe for Intelligent Life (Version 1, December 21, 2011), is available online, and I shall be quoting from it below. Since the paper is quite technical at times, I’ve omitted mathematical equations and kept the references to physical parameters to a minimum, since I simply wish to give readers an overview of what Dr. Barnes perceives as the key flaws in Professor Stenger’s book.
First, the abstract:
The fine-tuning of the universe for intelligent life has received a great deal of attention in recent years, both in the philosophical and scientific literature. The claim is that in the space of possible physical laws, parameters and initial conditions, the set that permits the evolution of intelligent life is very small. I present here a review of the scientific literature, outlining cases of fine-tuning in the classic works of Carter, Carr and Rees, and Barrow and Tipler, as well as more recent work. To sharpen the discussion, the role of the antagonist will be played by Victor Stenger’s recent book The Fallacy of Fine-Tuning: Why the Universe is Not Designed for Us. Stenger claims that all known fine-tuning cases can be explained without the need for a multiverse. Many of Stenger’s claims will be found to be highly problematic. We will touch on such issues as the logical necessity of the laws of nature; objectivity, invariance and symmetry; theoretical physics and possible universes; entropy in cosmology; cosmic inflation and initial conditions; galaxy formation; the cosmological constant; stars and their formation; the properties of elementary particles and their effect on chemistry and the macroscopic world; the origin of mass; grand unified theories; and the dimensionality of space and time. I also provide an assessment of the multiverse, noting the significant challenges that it must face. I do not attempt to defend any conclusion based on the fine-tuning of the universe for intelligent life. This paper can be viewed as a critique of Stenger’s book, or read independently.
Here’s a quote that I wanted to put out there from the paper about how widely accepted fine-tuning is among scientists:
There are a great many scientists, of varying religious persuasions, who accept that the universe is fine-tuned for life, e.g. Barrow, Carr, Carter, Davies, Dawkins, Deutsch, Ellis, Greene, Guth, Harrison, Hawking, Linde, Page, Penrose, Polkinghorne, Rees, Sandage, Smolin, Susskind, Tegmark, Tipler, Vilenkin, Weinberg, Wheeler, Wilczek. They differ, of course, on what conclusion we should draw from this fact. Stenger, on the other hand, claims that the universe is not fine-tuned.
That is a very diverse list. I know that Sandage, Ellis, Page, Tipler and Polkinghorne are theists. But I also know that Weinberg, Rees, Hawking, Greene, and Dawkins are atheists. So scientists all across the spectrum of worldview admit that the fine-tuning is real.
Now, let’s look at Barnes’ paper and see why Victor Stenger disagrees with the view of those scientists.
1) Stenger doesn’t show why the entropy at the beginning of the universe isn’t a case of fine-tuning:
Entropy
We turn now to cosmology. The problem of the apparently low entropy of the universe is one of the oldest problems of cosmology. The fact that the entropy of the universe is not at its theoretical maximum, coupled with the fact that entropy cannot decrease, means that the universe must have started in a very special, low entropy state. (p. 23)
Let’s return to Stenger’s proposed solution… Stenger takes it for granted that the universe is homogeneous and isotropic. We can see this also in his use of the Friedmann equation, which assumes that space-time is homogeneous and isotropic. Not surprisingly, once homogeneity and isotropy have been assumed, Stenger finds that the solution to the entropy problem is remarkably easy.
We conclude that Stenger has not only failed to solve the entropy problem; he has failed to comprehend it. He has presented the problem itself as its solution. Homogeneous, isotropic expansion cannot solve the entropy problem – it is the entropy problem. Stenger’s assertion that “the universe starts out with maximum entropy or complete disorder” is false. A homogeneous, isotropic spacetime is an incredibly low entropy state. Penrose (1989) warned of precisely this brand of failed solution two decades ago... (p. 26)
2) Stenger responds to calculations showing the need for fine-tuning by speculating that future calculations will overturn the ones we have now:
The Cosmological Constant, Lambda
The cosmological constant problem is described in the textbook of Burgess & Moore (2006) as “arguably the most severe theoretical problem in high-energy physics today, as measured by both the difference between observations and theoretical predictions, and by the lack of convincing theoretical ideas which address it”. A well-understood and well-tested theory of fundamental physics (Quantum Field Theory – QFT) predicts contributions to the vacuum energy of the universe that are [approx.] 10^120 times greater than the observed total value. Stenger’s reply is guided by the following principle:
Any calculation that disagrees with the data by 50 or 120 orders of magnitude is simply wrong and should not be taken seriously. We just have to await the correct calculation. [FOFT p. 219]
This seems indistinguishable from reasoning that the calculation must be wrong since otherwise the cosmological constant would have to be fine-tuned. One could not hope for a more perfect example of begging the question. More importantly, there is a misunderstanding in Stenger’s account of the cosmological constant problem. The problem is not that physicists have made an incorrect prediction. We can use the term dark energy for any form of energy that causes the expansion of the universe to accelerate, including a “bare” cosmological constant (see Barnes et al., 2005, for an introduction to dark energy). Cosmological observations constrain the total dark energy. QFT [quantum field theory – VJT] allows us to calculate a number of contributions to the total dark energy from matter fields in the universe. Each of these contributions turns out to be 10^120 times larger than the total. There is no direct theory-vs.-observation contradiction as one is calculating and measuring different things. The fine-tuning problem is that these different independent contributions, including perhaps some that we don’t know about, manage to cancel each other to such an alarming, life-permitting degree. This is not a straightforward case of Popperian falsification. (pp. 34-35)
3) Stenger doesn’t consider the full range of values when deciding if something is fine-tuned or not:
Protons, Neutrons, Electrons
We turn now to the relative masses of the three most important particles in our universe: the proton, neutron and electron, from which atoms are made. Consider first the ratio of the electron to the proton mass, … of which Stenger says: “…we can argue that the electron mass is going to be much smaller than the proton mass in any universe even remotely like ours.” [FOFT p. 164] (p. 50)
The fact that Stenger is comparing the electron mass in our universe with the electron mass in universes “like ours” is all the evidence one needs to conclude that Stenger doesn’t understand fine-tuning. The fact that universes like ours turn out to be rather similar to our universe isn’t particularly enlightening. (p. 50)
Finally, and most importantly, note carefully Stenger’s conclusion. He states that no fine-tuning is needed for the neutron-proton mass difference in our universe to be approximately equal to the up quark-down quark mass difference in our universe. Stenger has compared our universe with our universe and found no evidence of fine-tuning. There is no discussion of the life-permitting range, no discussion of the possible range of [mass(neutron) – mass(proton)] (or its relation to the possible range of [mass(down quark) – mass(up quark)], and thus no relevance to fine-tuning whatsoever. (p. 51)
Those are just a few of the examples in the paper, highlighted in the Uncommon Descent article (emphasis theirs).
By the way, here is a good debate between William Lane Craig and Victor Stenger from 2010 (this is their re-match):
It’s very important, I think, for theists and atheists alike to understand the force of the fine-tuning argument, and how firmly rooted the fine-tuning argument is in science. Christian theists look to science to ground the way we see the world. And this is really just an extension of Paul’s admonition in 1 Corinthians to Christians to be ready to dump Christianity if the resurrection didn’t happen. If the world isn’t the way we say it is, then there is no point in going through the motions to make parents and church people happy.
UPDATE: Peter Sean Bradley note that Krauss is now walking back his rhetoric in response to criticisms from people like atheist John Horgan.
WINTERY KNIGHT 