Category Archives: Polemics

Polemics

Luke Barnes reviews Victor Stenger’s critique of cosmic fine-tuning

4 Comments

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.

Here’s how Uncommon Descent explains Barnes’ response.

Summary:

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.

Polemics

Do objective moral values really exist? Is moral relativism true?

6 Comments

Neil Shenvi has written an article about it on his apologetics web page.

Thesis:

Do objective moral values exist? Many people in our culture today would say that they do not. Morality, says the moral relativist, is constructed by individuals or societies; what is moral for you might not be moral for me. In contrast, the claim of moral realism is that there are objective moral values which specify concepts like good and evil, right and wrong, and which transcend cultures and individuals. To my surprise, I found very little information on the Internet presenting evidence for moral realism, in spite of the fact that it is the majority position of academic philosophers. Although I do believe that we can have immediate personal knowledge through our conscience that objective moral values exist, I believe that there are also several pieces of objective evidence to support this position. Indeed, my claim is that we have many good reasons to believe that objective moral values exist and few -if any- reasons to believe that they do not exist.

In the first section of this essay I will explain what we mean by “objective moral values.” I will also emphasize the difference between moral ontology and moral epistemology, and between moral ontology and moral behavior. In the second section, I will present a positive case that objective moral values exist. I hope to show that there are many good reasons to accept the existence of objective moral values. In the third section, I will do something far less theoretical and far more personal; I will try to show that every one of us knows that objective moral values do exist but is surpressing this knowledge. And in the final section I will try to show why we are attracted to moral relativism despite its implausibility.

Outline:

[L]et’s look at the five pieces of evidence that objective moral values exist. If objective moral values exist and we can intuitively perceive them, this hypothesis explains five pieces of empirical evidence

  1. Nearly universally across human cultures, there exist the same basic standards of morality. In addition, there exist in all cultures truly altrustic acts which lead to no personal or genetic benefit.
  2. The majority of people who explicitly deny the existence of objective morality still act as if objective morality exists.
  3. There exists a nearly universal human intuition that certain things are objectively right or wrong.
  4. The majority of philosophers recognize the existence of objective moral facts.
  5. Many naturalists (like Sam Harris or Shelley Kagan) affirm the existence of objective moral facts, despite the problems inherent in grounding these facts in the natural world.

And more:

As I said in the first section, the basic premise of moral relativism is that there is no objective standard of moral behavior. All moral behavior is relative to individual persons or cultures; what is “good” or “bad” depends on the person, on the place and time, on the community, and on the culture. No action and no behavior can rightly be termed “bad” or “good” without qualification. Actions are only “good to you” or “bad to you”, “good to this culture” or “bad to this culture.” In the previous section, I tried to show that –based on the evidence– belief in moral relativism is unwarranted. It is theoretically possible to find ways around the evidence presented above, but each of these pieces of evidence seems to clearly point to the existence of objective moral values. In this secion, I will not attempt to show that belief in moral relativism is unwarranted; rather, I will try to show that no one actually believes in moral relativism. To do so, I will ask four questions. Each of them centers around a “thought experiment,” a highly hypothetical situtation which probes our reactions to admittedly unlikely circumstances. I urge the reader to take these questions very seriously.

The moral argument is probably the most intuitive and accessible argument for theism, with the possible exception of the cosmological argument.

Polemics

Does God pose an authority problem for you?

16 Comments

I’m going to steal this entire post from Tough Questions Answered to get a conversation started:

Many of the people I know who reject God or who have crafted a God that makes no demands on them have a fundamental problem with authority.  They don’t want anybody telling them what to do.

For a person who wants complete autonomy, who chafes at the thought of anyone having authority over them, a creator God who makes demands is way inconvenient.

Many people who believe in God, but also have this authority hang-up, create their own version of God.  This God gives them what they want when they want it.  He approves of everything they do, as long as they are just trying to be happy.  He encourages them to follow their desires, wherever they lead.  C. S. Lewis compared this God to a senile, old grandfather who never says “no” to his grandchildren.  You want chocolate for breakfast, lunch, and dinner?  No problem!

Is this the Christian God?  Philosopher Paul Moser answers the question:

It would be a strange, defective God who didn’t pose a serious cosmic authority problem for humans.  Part of the status of being God, after all, is that God has a unique authority, or lordship, over humans.  Since we humans aren’t God, the true God would have authority over us and would seek to correct our profoundly selfish ways.

If you are “worshiping” a God who makes no demands on you, you’re worshiping no God at all.  You’re just trying to find a deity to make you feel good about your selfish choices.  What’s the point?

I’m posting this because I’m looking for comments. Do you know anyone like this? I’ll help by getting you started with some sample atheists.

Famous atheists agree: God is not the boss of them

Consider the words of Thomas Nagel, a famous atheist philosopher:

“In speaking of the fear of religion, I don’t mean to refer to the entirely reasonable hostility toward certain established religions and religious institutions, in virtue of their objectionable moral doctrines, social policies, and political influence. Nor am I referring to the association of many religious beliefs with superstition and the acceptance of evident empirical falsehoods. I am talking about something much deeper–namely, the fear of religion itself. I speak from experience, being strongly subject to this fear myself: I want atheism to be true and am made uneasy by the fact that some of the most intelligent and well-informed people I know are religious believers.

I want atheism to be true and am made uneasy by the fact that some of the most intelligent and well-informed people I know are religious believers. It isn’t just that I don’t believe in God and, naturally, hope that I’m right in my belief. It’s that I hope there is no God! I don’t want there to be a God; I don’t want the universe to be like that.”(”The Last Word” by Thomas Nagel, Oxford University Press: 1997)”

He is a widely respected atheist. He once named Stephen C. Meyer’s Signature in the Cell as one of the Times Literary Supplement’s best books of the year.

And what about atheist Richard Lewontin: (and by “science” he means “naturalistic science”)

“Our willingness to accept scientific claims that are against common sense is the key to an understanding of the real struggle between science and the supernatural. We take the side of science in spite of the patent absurdity of some of its constructs, in spite of its failure to fulfill many of its extravagant promises of health and life, in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitment, a commitment to materialism. It is not that the methods and institutions of science somehow compel us to accept a material explanation of the phenomenal world but, on the contrary, that we are forced by our own a priori adherence to material causes to create an apparatus of investigation and a set of concepts that produce material explanations, not matter how counterintuitive, no matter how mystifying to the uninitiated. Moreover, that materialism is absolute, for we cannot allow a divine foot in the door.” (Richard Lewontin in New York Review of Books, January 9, 1997, p. 28)

Interesting. He’s willing to tell people lies to keep the Divine Foot outside the door.

And one last one from Aldous Huxley:

“I had motives for not wanting the world to have a meaning; consequently assumed that it had none, and was able without any difficulty to find satisfying reasons for this assumption. The philosopher who finds no meaning in the world is not concerned exclusively with a problem in metaphysics, he is also concerned to prove that there is no valid reason why he personally should not do as he wants to do, or why his friends should not seize political power and govern in the way that they find most advantegous to themselves… For myself, the philosophy of meaningless was essentially an instrument of liberation, sexual and political.” — Aldous Huxley in Ends and Means, 1937

So this is pretty widespread among famous atheists. How about among ordinary atheists?

Survey says

Additionally, atheists are not as charitable as religious people:

Arthur Brooks’ survey showed that atheists certainly give less in charity and do less community service as religious people on the right and left.

Quote:

Drawing on some ten data sets, Brooks finds that religiosity is among the best predictors of charitable giving. Religious Americans are not only much more likely to give money and volunteer their time to religious and secular institutions, they are also more likely to provide aid to family members, return incorrect change, help a homeless person, and donate blood. In fact, despite expecting to find just the opposite, Brooks concluded: “I have never found a measurable way in which secularists are more charitable than religious people.”

Consider some examples. Religious citizens who make $49,000 gave away about 3.5 times as much money as secular citizens with the same income. They also volunteered twice as often, are 57 percent more likely to help homeless persons, and two-thirds more likely to give blood at their workplace. Meanwhile, those who insist that “beliefs don’t matter as long as you’re a good person” are not as good as those who do think beliefs matter. The former group gave and volunteered at much lower rates.

Yet even these findings tend to obscure the impact of religion on charity. This is because some of the survey respondents that Brooks classified as secular are indirectly affected by religion if they were raised in a religious household.

Atheists also divorce more than committed Christians:

Quote:

It’s a number that is trumpeted from the rooftops — and the pulpit: Half of marriages among Christians and non-Christians alike end in divorce.

But the reality is that Christians who attend church regularly get divorced at a much lower rate.

Professor Bradley Wright, a sociologist at the University of Connecticut, found that among people who identify as Christians but rarely attend church, 60 percent have been divorced. Of those who attend church regularly, 38 percent have been divorced.

W. Bradford Wilcox, a leading sociologist at the University of Virginia and director of the National Marriage Project, found a nearly identical spread between “active conservative Protestants” who regularly attend church and people with no religious affiliation.

Professor Scott Stanley from the University of Denver, who is working on the Oklahoma Marriage Initiative, said couples with a vibrant religious faith have more and higher levels of the qualities that marriages need to avoid divorce.

“Whether young or old, male or female, low-income or not, those who said that they were more religious reported higher average levels of commitment to their partners, higher levels of marital satisfaction, less thinking and talking about divorce and lower levels of negative interaction,” he said. “These patterns held true when controlling for such important variables as income, education and age at first marriage.”

My survey of atheists

I like to find out what atheists are really thinking. So a while back, I did this massive survey of the atheists in my life, and this fear of authority (and morality) seemed to be the central belief animating atheism.

Here’s Question 11:

What is your purpose in life, and why did you choose that purpose? Is it just yours, or for everyone else too?

And these were the responses:

  • Mine is to feel good about myself and to feel respected by others.
  • Mine is to enjoy it. I’d hope that I go about it in a way that doesn’t interfere with others enjoyment and that when it does we can compromise.
  • Mine is to relieve inordinate suffering, while leaving room for constructive suffering that lead to creativity and progress. Based on empathy.
  • Mine is to help the species survive by having lots of children, because that lasts after you die
  • Each person decides for themselves. My purpose is to have happy feelings
  • My purpose is to have happy feelings by doing what most of the other people are doing and avoiding social disapproval
  • I have no “objective” purpose. I do what I can to be happy, all things considered.
  • To live as contented as possible. To find answers to big questions. To prepare my children for adulthood. I chose these things because that’s what I like. I don’t care what another’s purpose is as long as they don’t harm anyone.
  • My purpose is to seek happiness while doing no harm (or as little harm as is it may be possible to do) for as long as I’m alive. Of course it’s just my own purpose – I can’t presume to choose another’s purpose. That being said, I do presume everyone has more or less the same goal of happiness and fulfillment, but the precise methods of going about it are always going to vary from person to person.
  • I want to be happy. I generally like other people, and I want them to be happy too.

Here’s Question 12:

Suppose Jesus appeared to us right now and addressed you directly with the following words: “I’m really here and you need to follow me in order to flourish and achieve the goal for which I created you”. He then glares suspiciously at me, snatches a few fries from my plate, eats them, and then disappears. Later on, the Ghostbusters show up and confirm that Jesus was no ghost, but really God stepping into history. And everyone in the restaurant saw and heard exactly what you and I saw and heard. How would you proceed? How would you find out what to do? (i.e. – the atheist now knows Christianity is true, and I want to see what they think they should do in order to act like a Christian)

And these were the responses:

  • I have no idea
  • I would not follow. My own goals are all that I have, and all that I would continue to have in that unlikely situation. I would not yield my autonomy to anyone no matter what their authority to command me
  • I would not follow, because God doesn’t want humans to act any particular way, and he doesn’t care what we do
  • I would not follow. Head is spinning. Would go to physician to find out if hallucinating.
  • If I found there was no trickery? I’d have to change my mind wouldn’t I! Not really likely though is it?
  • I would keep doing what I am doing now, acting morally. That’s what all religions want anyway. (In response to my triumphant scribbling, he realized he had fallen into a trap and changed his answer to the right answer) Oh, wait. I would try to try to find out what Jesus wanted and then try to do that.
  • I hope I would be courageous enough to dedicate my life to rebellion against God.
  • I would not have to change anything unless forced to and all that would change is my actions not my values.  I would certainly balk at someone trying to force me to change my behavior as would you if you were at the mercy of a moral objectivist who felt that all moral goodness is codified in the Koran.
  • He would have to convince me that what he wants for me is what I want for me.

Here’s Question 13:

What would be the most difficult thing about becoming a Christian for you? Would it be the moral demands? The demands on your time? The unpopularity, humiliation and persecution that you would face? How would you feel about publicly declaring your allegiance for Christ and facing the consequences? (i.e. – they have become a Christian, what is the most difficult adjustment from your current life?)

And these were the responses:

  • I don’t know
  • It would not be that big of a change for me. I already act morally, I’m already public about my beliefs, and I don’t care what people think about what I believe. I don’t mind disagreeing with people and being unpopular for it. I think the 10 commandments are good. I could find out what to do and start doing those things.
  • I would not be able to believe in miracles, so there would be cognitive dissonance
  • Sacrificing my personal moral standards to take up a standard from a book that is very old and outdated
  • The most difficult would be the fact that I believe something without good evidence.
  • I work many hours a week for institutions and organizations that are charitable. I’m certainly not going to swap those for hours for “prayer time” and waste them.
  • I would certainly balk at someone trying to force me to change my behavior as would you if you were at the mercy of a moral objectivist who felt that all moral goodness is codified in the Koran. Obviously, it is possible that if I became a Christian, then I would have different values then I have now.
  • The most difficult thing would be trying to believe the ridiculous claims of Christianity. As for what a Christian finds difficult, how would I know?
  • I could never obey God from gratitude and love, only from servility inspired by fear and cowardice. I do not see myself as servile, fearful or cowardly, and to behave in such a manner would injure my self-esteem and self-image.

So you might be surprised to know that even if Christianity were true, atheists have no intention of changing the way they live. That’s the real issue – and that should be scary for any atheist to realize. If they just cracked open a Bible and read Romans 1, that should be enough to scare the crap out of them – because it’s pretty obvious what is going on with humans – all of us have an authority problem. And a lot of the learning and striving that atheists do is just an effort to get people to think that they are so great and successful after they’ve dumped their relationship with God.

I hope that more atheists look in the mirror and are honest with themselves about what’s really going on. Is it really such a terrible thing to have a relationship with the person who cares the most about you and wants the best for you? Is fun really that important that people have to push away a real, significant, eternal relationship just because it requires self-denial? If I didn’t embrace chastity, as God wishes, where would I get to time to do the really heroic things I do – and how could I concern myself with a woman’s real moral and spiritual needs if I got into the habit of using them selfishly? You can’t experience imitating God when you shut him out. And that’s what we are all here to do – to know him, to be his friend, to act in a way that allows us to feel what he feels, and to have sympathy with him.