Category Archives: Polemics

Alvin Plantinga’s evolutionary argument against naturalism

Here’s the link at First Things.

Excerpt:

Although Darwin admits he wasn’t much of an abstract thinker, he could not shake the “inward conviction” that “the Universe is not the result of chance.” Unlike many who followed after him, he appears to have intuitively understood the paradox of combining naturalism with evolutionary theory: If evolution is a non-teleological process, it undercuts our ability to trust that we can form true beliefs and convictions.

To have trustworthy convictions, we have to have properly functioning noetic equipment (i.e., a brain, spinal cord, sensory apparatus, etc., that recognize reality). But can a strictly materialistic, non-teleological, evolutionary process produce such reliable equipment? The philosopher Alvin Plantinga, one of the greatest thinkers of our era, thinks the answer is “no.” Although his argument is too complex and tightly argued to be adequately summarized, the basic outline of his case shows his point to be all but incontrovertible.

Plantinga claims, not that evolution is untrue, but that the truth of evolution is incompatible with the truth of naturalism. “As far as I can see, God certainly could have used Darwinian processes to create the living world and direct it as he wanted to go,” he argues. “Hence evolution as such does not imply that there is no direction in the history of life.”

What does imply that life is not directed, he adds, is not evolutionary theory itself, but the theory of unguided evolution: the idea that “neither God nor any other person has taken a hand in guiding, directing, or orchestrating the course of evolution.” For our purposes, we’ll call this view “evolutionary naturalism.”

Evolutionary naturalism assumes that our noetic equipment developed as it did because it had some survival value or reproductive advantage. Unguided evolution does not select for belief except insofar as the belief improves the chances of survival. The truth of a belief is irrelevant, as long as it produces an evolutionary advantage.

If you want to hear Plantinga giving a lecture on this same argument live on a university campus, click here.

Summary:

In a talk given at The Veritas Forum at Oregon State University in January 1996, Professor Alvin Plantinga presents an evolutionary argument against naturalism. In a complex, but important philosophical argument, he argues that it is not rational to accept belief in naturalism and evolution, because such beliefs provide no rational basis for trusting our cognitive faculties.

I think it’s a great challenge to naturalism that we should all be aware of.

Does atheism mean “a lack of belief in God”?

First, let’s see check with the Stanford University Encyclopedia of Philosophy.

Excerpt:

‘Atheism’ means the negation of theism, the denial of the existence of God.

Stanford University is one of the top 5 universities in the United States, so that’s a solid definition. To be an atheist is to be a person who makes the claim that, as a matter of FACT, there is no intelligent agent who created the universe. Atheists think that there is no God, and theists think that there is a God. Both claims are objective claims about the way the world is out there, and so both sides must furnish forth arguments and evidence as to how they are able to know what they are each claiming.

Philosopher William Lane Craig has some thoughts on atheism, atheists and lacking belief in God in this reply to a questioner.

Question:

In my discussions with atheists, they  are using the term that they “lack belief in God”. They claim that this is different from not believing in God or from saying that God does not exist. I’m not sure how to respond to this. It seems to me that its a silly word-play and is logically the same as saying that you do not believe in God.
What would be a good response to this?
Thank you for your time,

Steven

And here is Dr. Craig’s full response:

Your atheist friends are right that there is an important logical difference between believing that there is no God and not believing that there is a God.  Compare my saying, “I believe that there is no gold on Mars” with my saying “I do not believe that there is gold on Mars.”   If I have no opinion on the matter, then I do not believe that there is gold on Mars, and I do not believe that there is no gold on Mars.  There’s a difference between saying, “I do not believe (p)” and “I believe (not-p).”   Logically where you place the negation makes a world of difference.

But where your atheist friends err is in claiming that atheism involves only not believing that there is a God rather than believing that there is no God.

There’s a history behind this.  Certain atheists in the mid-twentieth century were promoting the so-called “presumption of atheism.” At face value, this would appear to be the claim that in the absence of evidence for the existence of God, we should presume that God does not exist.  Atheism is a sort of default position, and the theist bears a special burden of proof with regard to his belief that God exists.

So understood, such an alleged presumption is clearly mistaken.  For the assertion that “There is no God” is just as much a claim to knowledge as is the assertion that “There is a God.”  Therefore, the former assertion requires justification just as the latter does.  It is the agnostic who makes no knowledge claim at all with respect to God’s existence.  He confesses that he doesn’t know whether there is a God or whether there is no God.

But when you look more closely at how protagonists of the presumption of atheism used the term “atheist,” you discover that they were defining the word in a non-standard way, synonymous with “non-theist.”  So understood the term would encompass agnostics and traditional atheists, along with those who think the question meaningless (verificationists).  As Antony Flew confesses,

the word ‘atheist’ has in the present context to be construed in an unusual way.  Nowadays it is normally taken to mean someone who explicitly denies the existence . . . of God . . . But here it has to be understood not positively but negatively, with the originally Greek prefix ‘a-’ being read in this same way in ‘atheist’ as it customarily is in . . . words as ‘amoral’ . . . . In this interpretation an atheist becomes not someone who positively asserts the non-existence of God, but someone who is simply not a theist. (A Companion to Philosophy of Religion, ed. Philip Quinn and Charles Taliaferro [Oxford:  Blackwell, 1997], s.v. “The Presumption of Atheism,” by Antony Flew)

Such a re-definition of the word “atheist” trivializes the claim of the presumption of atheism, for on this definition, atheism ceases to be a view.  It is merely a psychological state which is shared by people who hold various views or no view at all.  On this re-definition, even babies, who hold no opinion at all on the matter, count as atheists!  In fact, our cat Muff counts as an atheist on this definition, since she has (to my knowledge) no belief in God.

One would still require justification in order to know either that God exists or that He does not exist, which is the question we’re really interested in.

So why, you might wonder, would atheists be anxious to so trivialize their position?  Here I agree with you that a deceptive game is being played by many atheists.  If atheism is taken to be a view, namely the view that there is no God, then atheists must shoulder their share of the burden of proof to support this view.  But many atheists admit freely that they cannot sustain such a burden of proof.  So they try to shirk their epistemic responsibility by re-defining atheism so that it is no longer a view but just a psychological condition which as such makes no assertions.  They are really closet agnostics who want to claim the mantle of atheism without shouldering its responsibilities.

This is disingenuous and still leaves us asking, “So is there a God or not?”

So there you have it. We are interested in what both sides know and what reasons and evidence they have to justify their claim to know. We are interested in talking to people who make claims about objective reality, not about themselves, and who then go on to give reasons and evidence to support their claims about objective reality. There are atheists out there that do make an objective claim that God does not exist, and then support that claim with arguments and evidence. Those are good atheists, and we should engage in rational conversations with them. But clearly there are some atheists who are not like that. How should we deal with these “subjective atheists”?

Dealing with subjective atheists

How should theists respond to people who just want to talk about their psychological state? Well, my advice is to avoid them. They are approaching religion irrationally and non-cognitively – like the person who enters a physics class and says “I lack a belief in the gravitational force!”.  When you engage in serious discussions with people about God’s existence, you only care about what people know and what they can show to be true. We don’t care about a person’s psychology.

Dealing with persistent subjective atheists

What happens when you explain all of that to a subjective atheist who continues to insist that you listen to them repeat over and over “I lack a belief in God, I lack a belief in God”? What if you tell them to make the claim that God does not exist, and then support it with arguments and evidence, but instead they keep leaving comments on your blog telling you again and again about their subjective state of mind: “I lack a belief in cupcakes! I lack a belief in icebergs!” What if they keep e-mailing you and threatening to expose you on Twitter for refusing to listen to them, or denounce you via skywriting: “Wintery Knight won’t listen to me! I lack a belief in crickets!”. I think at this point you have to give up and stop talking to such a person.

And that’s why I moderate and filter comments on this blog. There are uneducated people out there with access to the Internet who want attention, but I am not obligated to give it to them. And neither are you. We are not obligated to listen to abusive people who don’t know what they are talking about. I do post comments from objective atheists who make factual claims about the objective world, and who support those claims with arguments and evidence. I am not obligated to post comments from people who refuse to make objective claims or who refuse to support objective claims with arguments and evidence. And I’m not obligated to engage in discussions with them, either.

Positive arguments for Christian theism

Common atheist objections to Christianity and questions for pro-choice friends

This post on Well Spent Journey got 73 likes from bloggers.

Here’s the first one:

I’m writing this post primarily for my own convenience. During my online journeys to r/atheism, “freethought” blogs, and beyond, I encounter the following arguments so frequently that it seems sensible to fact-check them all at once.

The Claim: “Religion has been the primary cause of war and oppression throughout the history of mankind.”

The Truth: In their comprehensive Encyclopedia of Wars, Phillips and Axelrod document the recorded history of warfare. Of the 1,763 wars presented, a mere 7% involved a religious cause. When Islam is subtracted from the equation, that number drops to 3.2%.

In terms of casualties, religious wars account for only 2% of all people killed by warfare. This pales in comparison to the number of people who have been killed by secular dictators in the 20th century alone.

I’m surprised that these Internet atheists have never heard of The Black Book of Communism, published by Harvard University Press, either. 100 million deaths were caused by atheistic regimes in the last century. One Hundred Million Deaths.

Anyway, here are the other challenges in post:

  • The Claim: “Thanks to modern science, the days of religion are numbered. Humanity’s superstitious belief in miracles and sky gods will soon be replaced by an era of atheism and rationalism.”
  • The Claim: “The dark ages were a time of ignorance and superstition, thanks to religion’s negative influence on scientific progress.”
  • The Claim: “Jesus was a mythical figure. The New Testament stole most of its stories from other ancient sources.”

All are dealt with in the post on Well Spent Journey. When I look at these arguments, and compare them to our good, deductive, science-based arguments for theism, it does make me feel sorry for atheism.

Questions for pro-abortion people

This post was too short, so I thought I would link to Well Spent Journey’s “Twelve Questions to Ask Your Pro-Choice Friends“.

He’s got a list of twelve in the post, but I like these ones because they really put the pro-abortion person on the defensive:

3. Pro-choice philosophers typically define the value of a human life in terms ofutility (development of brainwaves, consciousness, etc.). If this is true, then why is it morally acceptable to sacrifice pigs and dogs for the purpose of medical/scientific research, but not human infants? Neurologically speaking, it’s not at all controversial to say that pigs and dogs are in many ways “more advanced” than human infants. Yet society only accepts sacrificing the former for experimental purposes. Do you? If so, why?

4. Do you support paternal child support laws? (Consider this quote from Dr. Michael Pakaluk: “[Suppose] that the reason the woman has sole right to decide to have an abortion is that the status of the fetus somehow depends upon how she chooses to regard it: thus, the fetus is not a child until the mother decides that it is, say, at some point later in pregnancy. But then a consequence of this is that the man, through having intercourse with the woman, does not conceive a child. Rather, he conceives only a fetus, and the fetus at some later point becomes a child, only because of the woman’s deciding that it is. But then the man’s role in intercourse is not a cause of a child. He brought into existence only a fetus, and it was the woman’s decision to ‘continue the pregnancy through term’ that made it a child. But if so, it is not clear why the man should have any responsibility for the child. How could the woman bring a claim for paternity support against him? After all, he could rightly reply: ‘You decided to regard the fetus as a child; so the child is your responsibility.’”)

7. What is your position on “two-minus-one” abortions? Are they ethical? Should they be legal?

8. Many of those who identify as “pro-choice” are particularly concerned with issues of inequality and discrimination. Are discriminatory abortions (such as sex-selective abortions) legally or morally defensible? Suppose that scientists developed a prenatal test to determine whether or not one’s child will be homosexual. Would you support a woman’s legal right to abort her fetus solely because of his homosexuality?

By the way, I added Well Spent Journey to my blogroll. For some reason, it was not already there!