Sunday, August 25, 2013

Are Debates Worthwhile?

At 1:32:40 in the William Lane Craig versus Rosenberg debate, Rosenberg seems to be saying that debates like the one he’s participating in aren’t worthwhile (which leads one to wonder why he’s participating in it!). Here’s what he says:
But that’s the problem with this kind of debate and with this kind of format, it doesn’t work. It doesn’t work because what I would like to be able to do is to ask William Lane Craig a question and formulate a reply, and listen to his answer and give a view, and listen to his question; which is the way in which philosophical dialogue proceeds and which enables us to at least find out where the crucial issues are between us and how we could mutually agree to adjudicate these matters.

There is something to be said with the sort of dialogue Rosenberg is describing here, but I think there is also something to be said with two sides intellectually critiquing each other for a number of reasons. First, when discussing atheism versus theism (or any other controversial philosophical topic), it is useful for one to listen to what both sides have to say, and the philosophy student might well be curious to see how each side responds to the arguments of the other. I think this can give valuable insight to those who want to learn more about the topic. Second, it is also a good opportunity to introduce people to both sides of a topic that they might not otherwise do. Many are guilty of confirmation bias, absorbing only those books, blogs, lectures, and YouTube videos that already confirm what they already believe. A debate makes it more likely that people of both sides will listen to what the other has to day in a fair manner (both sides get equal time). Third, I also think back-and-forth intellectual critiques helps produce better arguments for both sides, and thereby aids in intellectual advancement.

So are debates useful? My answer is actually this: it depends. It depends on the debate in question and how well each side does their position intellectual justice. All too often I’ve seen atheists drop the ball when it comes to intellectually defending atheism against the likes of William Lane Craig, but there are times where I’ve seen atheists do a pretty good job. One example is the book, God?: A Debate between a Christian and an Atheist. Here the atheist, Walter Sinnott-Armstrong, had an advantage that atheists in oral debates didn’t, which is one of the reasons why I think this debate went so well. First, consider the sort of things needed to do well in an oral debate:

  1. Be prepared ahead of time. You better research your opponent well so you have potential rebuttals ready, since once your opponent says something, you won’t exactly have very much time to research your response because you’re up after the other guy finishes.
  2. Think on your feet. Related to #1, you’re going to have to think of a rebuttal fast (especially if you come up against an argument or objection you have not heard before), and you don’t have very much time to do so.
  3. Watch the clock. You’re going to have to be careful about giving an extemporaneous rebuttal within the time allotted.

Craig is a master at all three of these things, which is one of the reasons why he’s so difficult to defeat in an oral debate. But now consider a written debate in book form where each side has ample time to prepare a good rebuttal (think weeks or months instead of mere minutes!) and fit the rebuttal within the allotted space. The result can be something of much improved quality indeed—not so much for Craig, since he’s an excellent debater and has mastered his craft in written and oral form—but an improvement in quality I think for many atheist philosophers who would wish to debate Craig. The result in God? was that Craig is about as good as he is in his oral presentations, whereas the atheist philosopher did a job that is substantially superior to most atheists I’ve seen who engage Craig in an oral debate.

An Idea for Better Debates

What might be worthwhile is for people to do written debates well researched in advance, and then each side gives their oral presentations to the audience. The result, I think, would be better for atheists overall—and it’s something that William Lane Craig might even appreciate. Here’s Craig talking about the written book debates he’s done:

I invite anyone to read these [debate] books and see if he thinks my arguments hold up. In fact, I wish people would read these books! I’m troubled that some people seem to know me only through [oral] debates which are often frustratingly shallow because my opponents rarely bring up any good objections.

Craig might be wrong about how well his arguments hold up, but in oral debates against Craig the pro-atheist side often is frustratingly shallow to some thinking atheists (e.g. Luke Muehlhauser, who laments, “When debating him, atheists have consistently failed to put forward solid arguments”) and evidently to Craig also. Considering how video debates on the internet are (alas) more popular than reading books nowadays, I’m hoping this idea of preparing all statements in advance will catch on. In the meantime, it might be worthwhile to check out the debates-in-book-form talking about Craig talks about, including the one I mentioned earlier with Walter Sinnott-Armstrong.

Sunday, July 28, 2013

William Lane Craig versus Rosenberg (part 11)

My series on the February 2013 debate between William Lane Craig and Alex Rosenberg:
  1. The Leibnizian Cosmological Argument
  2. The Kalam Cosmological Argument
  3. The Applicability of Mathematics to the Physical World
  4. The Fine-Tuning of the Universe for Intelligent Life
  5. Intentional States of Consciousness in the World
  6. Objective Moral Values and Duties in the World
  7. The Historical Facts about Jesus of Nazareth
  8. God can be Personally Known and Experienced
  9. Arguments Against Naturalism
  10. Wrap-Up

Introduction

In February 2013 atheist philosopher Alex Rosenberg debated Christian philosopher William Lane Craig over whether faith in God is reasonable (debate begins at around 17:14). I’ve mentioned before the reason why William Lane Craig wins debates, and since this debate is a good example of how not to debate William Lane Craig, I have been going through some of what Rosenberg did wrong and how he could have done a lot better.

It’s tempting to write off Craig’s victory in this debate to Craig’s debating skills, but that would be a mistake. Don’t get me wrong; Craig is an excellent debater. But the main reason Rosenberg lost had to do with the abysmal case he presented for atheism. I’ve had quite a bit to say about the debate, and I figure it’s high time I try to wrap it up. In a nutshell, Rosenberg lost the debate primarily because he:

  1. Attacked straw men.
  2. Failed to adequately research for the debate.
  3. Failed to attack a premise in a pro-theism, deductively valid (conclusion follows from the premises) argument.
  4. Failure to spot holes in Craig’s arguments.
  5. Used bad objections instead of good ones.
  6. Clumsily handled the argument from evil.
  7. Used time in a non-economic fashion.

I’ll explain each one in a little more detail below.

The Problems, in a Nutshell

1) Straw Men

One problem is that Rosenberg attacked straw men. In the Leibnizian cosmological argument, Rosenberg failed to attack the version of the principle of sufficient reason (PSR) that Craig actually used. In the case of the kalam cosmological argument, Rosenberg said, “For Dr. Craig to insist on the arguments that rest on the claim that every event had a cause, that had to have brought it into being, is just bluff.” Craig however has made it clear in his writings and his talks that this is precisely what the first premise of the KCA (“anything that begins to exist has a cause”) does not claim. You might be able to get away with a straw man when you’re preaching to the choir and nobody calls you on it, but that won’t work against William Lane Craig. Some theists might think Rosenberg intentionally distorted Craig’s position, but that’s clearly B.S. Rosenberg had everything to lose (and did lose!) and nothing to gain by wasting his time attacking a position Craig didn’t hold, because Craig would obviously call him on it. If you’re going to debate William Lane Craig, make sure you attack the positions he actually advocates.

2) Failure to Do Adequate Research

Another problem is that Rosenberg failed to do adequate research. You know the point about the first premise specifically not claiming that every event has a cause? A brief Google search of the Reasonable Faith website (William Lane Craig’s main Christian apologetics website) for “every event has cause” reveals William Lane Craig saying things like, “Notice that I might add that this premise doesn’t say that every event has a cause and Craig clearing up someone else’s apparent confusion that the first premise of the KCA commits us to believing that every event has a cause. Indeed, both of these pages were the top two results of the Google search I did. To the very least, Rosenberg should have read Craig’s writings or seen Craig’s talks and attack only those positions he sees Craig actually putting forth, and not blindly assume Craig holds the position he wants to attack.

Even if we ignore that, there are other examples of Rosenberg failing to do the needful research. Rosenberg made embarrassing statements like saying the New Testament documents were originally written in Aramaic not Greek, and then there’s the fact that he was completely unprepared for Craig’s response to the Euthyphro dilemma. Seriously, did Rosenberg think that Craig had never thought of the Euthyphro dilemma as an objection to his moral argument, or that Craig’s response to the Euthyphro objection couldn’t easily be found via an obscure little thing called Google? He also brought up the World Ensemble objection right after Craig already rebutted it and Rosenberg had no response to Craig’s rebuttal. If you’re going to debate William Lane Craig, you’re going to need to prepare for Craig’s responses to objections. And when you’re dealing with philosophy of religion, researching Craig’s responses to the Euthyphro objection (a common objection against the moral argument) and the World Ensemble explanation (a common rebuttal to the fine-tuning argument) is pretty close to common sense, because those rebuttals against those pro-theism arguments are pretty well known and you have to figure a guy like Craig responded to them. If you want to deliver a high-quality intellectual rebuttal to Craig’s positions in an oral debate, you’re going to need to prepare and do some research.

3) Not Attacking a Premise in a Valid Pro-theism Argument

Another reason Rosenberg lost is that in some cases Craig presented a deductively valid argument for God, when Rosenberg did little or nothing to attack a premise of those deductively valid arguments. Since the conclusion follows logically and inescapably from any valid argument (that’s what the word “valid” means in logic), the logical thing to do is to show that a premise is false or at least insufficiently supported. Remarkably, Rosenberg didn’t attack any premise of Craig’s moral argument for God anywhere in the entire debate. That’s a pretty big lapse when you consider that a false premise is the only way Craig’s argument can fail to be sound. Rosenberg also did little if anything to attack a premise in Craig’s argument from intentional states of consciousness in the world. Unfortunately, Rosenberg is not the first person to make this sort of mistake, so I’ll kind of reiterate here: when a theist presents a deductively valid argument for God, the atheist needs to attack a premise, because a false premise is the only way a deductively valid argument can fail to be sound.

4) Failure to Spot Holes in Craig’s Arguments

Perhaps the biggest example of this is when Craig argued for the Resurrection of Jesus. In Craig’s opening statement, he said three facts support the resurrection of Jesus and says most New Testament historians agree with those three claims. Craig never offers any source for his claim that most New Testament historians accept his three claims. Even ignoring that, there would be the somewhat obvious concern about whether most of these New Testament historians who accept these three claims are already Christians. And apart from Craig’s questionable appeal to authority (and he also appeals to the opinion of the religiously motivated Christian scholar N.T. Wright), he doesn’t offer any reason to believe that these three claims are true! This is a big, gaping hole, and Rosenberg seemed not to notice it.

5) Using Bad Objections Instead of Good Ones

This is related to the above problem (failure to spot holes in Craig’s arguments). It’s almost as if the reason Rosenberg used bad objections was because he didn’t know any good ones. To use a specific example, instead of pointing out the gaping holes I mentioned in Craig’s case for the resurrection, in his first rebuttal he attacked the reliability of eyewitness testimony in general. When you think about it, this is a remarkably and obviously bad objection. If the prosecution offers three eyewitnesses saying they saw the accused do the crime, do you think the defense attorney can just get up and say, “Eyewitness testimony is unreliable” and let that be a sufficient reason to reject the claims of the eyewitnesses? Obviously not. Then there’s the fact that most knowledge of ancient history is ultimately based on (written or otherwise) eyewitness testimony. If we had to throw out all historical claims that critically rely on eyewitness testimony, we’d basically have no ancient history at all (there’s only so much you can learn from the existence of statues and buildings if you reject what any and all ancient documents have to say).

Unfortunately, Rosenberg isn’t the first atheist to use bad objections instead of good ones. I’ve seen a number of atheists on the internet (and even some atheists in books) do the same thing. Again, when preaching to the choir, a lot of atheists won’t call people out on this, but in a debate, Craig probably will. One has to realize that just because a belief is true, this does not mean that every argument for it will be a good one. Before making a pro-atheism objection, think critically about it; think of how you would respond if you were a theist. If the objection doesn’t work, admit it to yourself and find one that does work. This might require some research (just because a belief is false doesn’t necessarily mean you’ll know the refutation right away) but I think the effort will be worth it. In this blog, I’ve tried to shun the bad objections in favor of better ones. Heck, pretty much any part in this William Lane Craig vs. Rosenberg series is an example of me doing just that.

6) Clumsily handling the argument from evil

Done properly, the argument from evil is a great argument against the existence of an all-knowing, all-powerful, all-good God. Which is why I was so dismayed to see Rosenberg mess this up. First, he seemed to be putting forth a bad version of the logical problem of evil (the idea that the existence of God and evil is logically incompatible) that has long been refuted. Moreover, the logical argument from evil in general just doesn’t work, because while God doing nothing as he watches childhood cancer victims die is highly implausible, it is not, strictly speaking, a logical contradiction that he allows them to suffer for some greater good.

In a previous blog entry, I illustrated why the logical possibility of a greater good defeats the logical problem of evil with my story I called Bill the idiot theist. Let’s label the sum total of suffering that has ever existed in this world and will exist Φ. Bill the Idiot Theist thinks Φ suffering makes the angels in heaven smile, and that “Φ suffering making angels smile” is a great good, a much better good than eliminating all the suffering in the world. So on this view, God cannot eliminate any of the suffering that exists without also eliminating the greater good of “Φ suffering making angels smile.” This is the theodicy that Bill the Idiot Theist believes. Bill’s idiotic theodicy is terrible, but it’s not self-contradictory, and so a perfectly good God allowing evil isn’t a logical contradiction even if it is highly implausible. As such, the logical problem of evil doesn’t work.

The failure of the logical problem of evil doesn’t mean it’s all sunshine and daffodils for theism though. Rosenberg could have pointed to the obviously low probability that a perfectly good, omniscient, and omnipotent God would do nothing as he watched child cancer victims succumb to horrible deaths, even if God behaving that way isn’t strictly self-contradictory. If the theist puts forth a terrible theodicy (as in the case of Bill the Idiot Theist), the atheist can point out how terrible it is without saying it is self-contradictory. Rosenberg should have used the evidential argument from evil (the idea that the existence of evil and suffering is evidence against theism), as I did in my own argument from evil.

Rosenberg clumsily handled the argument from evil because at first he seemed to be arguing a bad version of the logical problem of evil, and he didn’t clearly gainsay Craig about it being an issue of logical incompatibility between God and evil (indeed, he says this fairly explicitly in 1:20:03-1:21:43, where he also insists that the problem of evil is a logical one). When Craig responds on how even atheist philosophers have abandoned the logical problem of evil, in Rosenberg’s next round he acts as if he and Craig were talking about a more generic problem of evil all along (1:34:47) rather than the logical problem of evil specifically; e.g. he portrays Craig as asserting that “invoking my best friend, Peter van Inwagen, asserting that nobody anymore believes” that the argument from evil is a problem for theism, even though Craig’s quotes from philosophers that Rosenberg alludes to in this response were clearly about the logical problem of evil specifically, not the argument from evil in general. Rosenberg was egregiously clumsy in handling the argument from evil.

7) Using time in a non-economic fashion

Formal oral debates typically have time limits, so it behooves the debaters to use their time efficiently, e.g. not take four minutes to rebut an argument when a thirty second rebuttal would suffice. Rosenberg screwed up big time on this when it came to addressing William Lane Craig’s army of arguments against naturalism, where such arguments attempt to show that naturalism implies absurd consequences. One problem with Craig’s army of arguments against naturalism is that the debate is about theism versus atheism, not theism versus naturalism. As such, the logical thing to do for Rosenberg when first speaking on the arguments against naturalism would be to point out that he is arguing for atheism in the debate, not naturalism. But while Rosenberg does try to separate the issue of naturalism and atheism in 1:13:02 to 1:18:25, where he says atheism and the other claims follow from science, rather than the set of claims following from atheism per se, he wasted several minutes doing so instead of a much shorter response like, “While those other strange claims of mine are interesting topics in their own right, they are not the subject of tonight’s debate. Tonight I’m arguing that theism is false, not that naturalism is true.”

To be fair, later in the debate, Craig does try to prevent his arguments against naturalism from being a total red herring by claiming that if atheism is true then naturalism is true, but he failed to mention this when he first gave his arguments against naturalism, hence the “While those other strange claims of mine are interesting topics in their own right…” response would have been adequate the first time Rosenberg rebutted Craig’s anti-naturalism arguments. But what about when Craig claimed that naturalism is the most plausible form of atheism, and he argued that naturalism is false? Another tactic would be needed, but it’s not too difficult to think of one once one keeps in mind the following two facts: (1) Craig’s only support of the most controversial premises is that Rosenberg supposedly agrees with them; and (2) what Rosenberg really believes is that it’s not atheism or naturalism per se that implies the apparently absurd consequences, but science. So Rosenberg could have said something like this:

It should be remembered that tonight I’m arguing that theism is false, not that naturalism is true. Craig seems to think that naturalism is the most plausible alternative to atheism, but that won’t matter if atheism plus our background knowledge does not imply the apparently absurd consequences he thinks they do. So for Craig’s arguments to be relevant, Craig would need to show that atheism plus our background knowledge implies those consequences. I don’t believe it’s atheism or naturalism per se that implies things like sentences not having genuine meaning, but rather our background knowledge, especially science, that implies such claims. But because whether I’m right about what science implies about this is not the subject of tonight’s debate, and because I could be wrong about what our background knowledge implies, I’ll play devil’s advocate here so you can better judge for yourselves whether we’re justified in thinking that atheism plus background knowledge implies things like sentences not really having meaning.

At which point, Rosenberg could have pointed out that Craig didn’t really given any justification for the idea that atheism plus background knowledge implies those consequences, and it would have been Craig who wasted a bunch of time (it took a quite bit of time arguing for all those arguments against naturalism), not Rosenberg.

Parting Thoughts

It is worth noting that the last mistake (using time in a non-economic fashion) is the only mistake I’ve catalogued here that is solely about debating skills, as opposed to mistakes relating to the intellectual quality of Rosenberg’s pro-atheism case (using bad objections instead of good ones etc.). So while good debating skills are certainly a valuable asset, we shouldn’t lose sight of the main reason Rosenberg and many other atheists collapse in front of Craig: presenting a tragically inferior intellectual case for atheism.

Sunday, June 30, 2013

William Lane Craig versus Rosenberg (part 10)

My series on the February 2013 debate between William Lane Craig and Alex Rosenberg:
  1. The Leibnizian Cosmological Argument
  2. The Kalam Cosmological Argument
  3. The Applicability of Mathematics to the Physical World
  4. The Fine-Tuning of the Universe for Intelligent Life
  5. Intentional States of Consciousness in the World
  6. Objective Moral Values and Duties in the World
  7. The Historical Facts about Jesus of Nazareth
  8. God can be Personally Known and Experienced
  9. The Argument from Evil

Introduction

In February 2013 atheist philosopher Alex Rosenberg debated Christian philosopher William Lane Craig over whether faith in God is reasonable (debate begins at around 17:14). I’ve mentioned before the reason why William Lane Craig wins debates, and since this debate is a good example of how not to debate William Lane Craig, I have been going through some of what Rosenberg did wrong and how he could have done a lot better. In this entry I’ll address Craig’s various arguments against naturalism. In this entry I’ll address Rosenberg’s argument from evil and Craig’s responses.

The Argument from Evil

What Rosenberg did

At some points in the debate Rosenberg seems to be making a logical problem of evil (where there is alleged to be a logical contradiction between God and evil). At 56:29 or so before he points out the obvious existence of suffering, he says that

if the theist[’s] God exists, he is omnipotent and benevolent. A benevolent creature eliminates suffering to the extent that the benevolent creature can. Therefore if there’s a God and he's omnipotent and benevolent, he eliminates all suffering.

This argument is a bit clumsy as it stands. For one thing, the conclusion, “Therefore if there’s a God and he's omnipotent and benevolent, he eliminates all suffering,” doesn’t quite follow from the previous statements, and needs to be cleaned up a bit. We can phrase Rosenberg’s argument more charitably and rigorously though like this:

  1. If God exists, he is omnipotent and benevolent.
  2. Any omnipotent being would have the power to eliminate all suffering.
  3. Any benevolent being would eliminate all suffering to the extent it is able to.
  4. Therefore, if God exists he would eliminate all suffering (from 1-3) and there would be no suffering.
  5. There is suffering.
  6. Therefore, God does not exist.(from 4 and 5).

The argument is deductively valid, i.e. the conclusion logically and necessarily from the premises. But it has long been realized in philosophy of religion that line 3 is false. Suppose for example a friend is stranded on the road and suffering of thirst. I am benevolent and have the ability to eliminate his suffering but, being ignorant of my friend’s condition, do not help him. We could change line 3 to “Any benevolent being would eliminate all suffering it knows about to the extent it is able to,” but that isn’t quite true either. Suppose two of my friends are stranded and I’m the only one capable of helping them. Alice will die if I don’t immediately take her to the hospital, and Bob will suffer some mild aches if I don’t give him aspirin. I take the first friend to the hospital, thereby not eliminating the suffering of Bob, even though eliminating the suffering of Bob is within my ability, albeit at the risk of preventing the greater good of helping Alice.

All this may seem trivial, but rigorous thinking matters not only in science but also in philosophy. Theists have long maintained that God is not omnipotent in the sense that he can do literally anything; God cannot do the logically impossible. (If the atheist insists that God can do even the logically impossible, then the logical problem of evil poses little problem for theism, since such a God is capable of creating the logical contradiction.) Many theists have argued that, as in the case of Alice and Bob, God cannot eliminate the suffering without also eliminating a greater good. This may well be implausible, but the bare logical possibility of this is enough to defeat the logical problem of evil, and as such Rosenberg should have given a better argument from evil.

To illustrate why the logical possibility of a greater good defeats the logical problem of evil, consider a scenario I’ll call Bill the Idiot Theist. Let’s label the sum total of suffering that does exist, has ever existed in this world, and will exist Φ. Bill the Idiot Theist thinks Φ suffering makes the angels in heaven smile, and that “Φ suffering making angels smile” is a great good, a much better good than eliminating any of the suffering in the world. So on this view, God cannot eliminate any of the suffering that exists without also eliminating the greater good of “Φ suffering making angels smile.” This is the theodicy that Bill the Idiot Theist believes. Bill’s idiotic theodicy is terrible, but it’s not self-contradictory, and so a perfectly good God allowing evil isn’t a logical contradiction even if it is highly implausible. As such, the logical problem of evil doesn’t work.

What Rosenberg should have done

It should first be remembered that a belief doesn’t have to be logically impossible to be ridiculous and highly implausible. What Rosenberg should have done is say that while it is not logically impossible that a perfectly good God would allow the evil we see, it is highly implausible that he would.

So one would be better off pointing to the obviously low probability that a perfectly good, omniscient, and omnipotent God would do nothing as he watched child cancer victims succumb to horrible deaths, even if God behaving that way isn’t strictly self-contradictory. If the theist puts forth a terrible theodicy (as in the case of Bill the Idiot Theist), the atheist can point out how terrible it is without saying it is self-contradictory. Rosenberg should have used the evidential argument from evil (the idea that the existence of evil and suffering is evidence against theism), as I did in my own argument from evil. It’s quick, simple, and pretty devastating.

In fairness to Rosenberg, I should point out that it isn’t entirely clear in the debate whether Rosenberg was presenting an evidential argument from evil, a logical problem of evil, or both. At certain times he seems to be presenting an evidential argument from evil, and at other times he seems to argue for the logical problem of evil. At around 58:43 he characterizes his argument from evil as a

logical deduction which shows the incompatibility of an omnipotent and benevolent creature with suffering on this planet.

This kind of suggests he’s talking about the logical problem of evil, but within a minute after this he says that it’s not enough to fob it off on “the mere logical compatibility” of God and suffering, thereby also suggesting he’s talking about an evidential argument from evil. Craig seems to interpret Rosenberg as presenting the logical problem of evil (0:59:59 to 1:00:47) and Rosenberg doesn’t clearly gainsay Craig on that point anywhere in the debate. Indeed, Rosenberg seems to suggest fairly explicitly that his argument is about the logical incompatibility of God and evil at around 1:20:03-1:21:43, where he also insists that the problem of evil is a logical one, seemingly contradicting what he said earlier about it not being enough to demonstrate the “mere logical compatibility” of God and suffering.

And the confusion gets worse. When Craig responds on how even atheist philosophers have abandoned the logical problem of evil, in Rosenberg’s next round he acts as if he and Craig were talking about a more generic problem of evil all along (1:34:47) rather than the logical problem of evil specifically; e.g. he portrays Craig as asserting that “invoking my best friend, Peter van Inwagen, asserting that nobody anymore believes” that the argument from evil is a problem for theism, even though Craig’s quotes from philosophers that Rosenberg alludes to in this response were clearly about the logical problem of evil specifically, not the argument from evil in general. While near the end he seems to be talking about a more generic problem of evil and rightfully points out that God (if he existed) could have given us free will without giving us the bubonic plague (1:36:46-1:36:52), the fact remains Rosenberg seems to have made a confused mess of things, and so if nothing else Rosenberg should have been clearer about presenting his own position and been more careful to remember what was said in the previous rounds. He also shouldn’t have given an initial version of the argument from evil that was so flawed.

Craig also argues (at around 1:25:14 onward) that it’s possible that only in a world “suffused with natural and moral evil that the optimal number of people would come to know God freely, find salvation and eternal life.” I’ve addressed William Lane Craig’s “suffused with suffering” claim before, and I think Rosenberg should have given a response something along what I wrote there.

Friday, May 31, 2013

William Lane Craig versus Rosenberg (part 9)

My series on the February 2013 debate between William Lane Craig and Alex Rosenberg:
  1. The Leibnizian Cosmological Argument
  2. The Kalam Cosmological Argument
  3. The Applicability of Mathematics to the Physical World
  4. The Fine-Tuning of the Universe for Intelligent Life
  5. Intentional States of Consciousness in the World
  6. Objective Moral Values and Duties in the World
  7. The Historical Facts about Jesus of Nazareth
  8. Arguments Against Naturalism
  9. Wrap-Up

Introduction

In February 2013 atheist philosopher Alex Rosenberg debated Christian philosopher William Lane Craig over whether faith in God is reasonable (debate begins at around 17:14). I’ve mentioned before the reason why William Lane Craig wins debates, and since this debate is a good example of how not to debate William Lane Craig, I have been going through some of what Rosenberg did wrong and how he could have done a lot better. In this entry I’ll address Craig’s various arguments against naturalism.

Arguments Against Naturalism

In his first rebuttal phase, Craig goes on what at first appears to be a long series of red herrings: arguments against naturalism. At around 1:01:04 Craig describes “epistemological naturalism” as saying “science is the only source of knowledge” and “metaphysical naturalism” as saying “only physical things exist.” At around 1:04:28 onward, he advances these arguments against metaphysical naturalism:

Frist, the argument from intentionality:

  1. If naturalism is true, I cannot think about anything.
  2. I am thinking about naturalism.
  3. Therefore, naturalism is not true.

Second, the argument from meaning:

  1. If naturalism is true, no sentence has any meaning.
  2. Premise (1) has meaning.
  3. Therefore, naturalism is not true.

Third, the argument from truth:

  1. If naturalism is true, then there are no true sentences.
  2. Premise (1) is true.
  3. Therefore, naturalism is not true.

Fourth, the argument from moral praise and blame.

  1. If naturalism is true, I am not morally praiseworthy or blameworthy for any of my actions.
  2. I am morally praiseworthy or blameworthy for some of my actions.
  3. Therefore, naturalism is not true.

Fifth, the argument from freedom (which appeals to the alleged existence of free will):

  1. If naturalism is true, I do not do anything freely.
  2. I am free to agree or disagree with premise (1).
  3. Therefore, naturalism is not true.

Sixth, the argument from purpose:

  1. If naturalism is true, I do not plan to do anything.
  2. I planned to come to tonight’s debate.
  3. Therefore, naturalism is not true.

Seventh, the argument from enduring (which involves one being the same person for more than a moment, thus allowing one to be blameworthy for past actions):

  1. If naturalism is rue, I do not endure for two moments of time.
  2. I’ve been sitting here for more than a minute.
  3. Therefore, naturalism is not true.

Eighth, the argument from personal existence:

  1. If naturalism is true, then I do not exist.
  2. I do exist!
  3. Therefore, naturalism is not true.

In most of these arguments, it’s the first premise that is really questionable, so what is Craig’s support for the first premises? The claim that Rosenberg agrees with them!

Rosenberg’s Response

It may well be true that Rosenberg’s skepticism of theism is rooted in scientism or naturalism, as Craig claims around 1:04:42, but all this is irrelevant to the actual reasonableness of theism. Even assuming that Craig hasn’t (even if inadvertently) built straw men of Rosenberg, surely things like “sentences have no meaning” aren’t shared by most atheists.

Thankfully, in his rebuttal Rosenberg does try to separate the issue of naturalism and atheism in 1:13:02 to 1:18:25, where he says atheism and the other claims follow from science, rather than the set of claims following from atheism per se, but he wasted several minutes doing so instead of a much shorter response like, “While those other strange claims of mine are interesting topics in their own right, they are not the subject of tonight’s debate. Tonight I’m arguing that theism is false, not that naturalism is true.”

At first blush, Craig’s arguments against naturalism seem like a string of red herrings (certainly I thought so at first). How is all Craig’s talk against naturalism relevant to the debate? Craig might have suspected this concern because he explicitly answers this question at 1:30:25.

He [Rosenberg] says these bizarre consequences that he affirms don’t follow from atheism, they follow from scientism; but my argument was that scientism or epistemological naturalism doesn’t imply metaphysical naturalism

First, Craig gets Rosenberg’s claim wrong; Rosenberg claimed they followed from science not scientism (scientism is, roughly, the view that science is the best or only source of knowledge; it’s more or less synonymous with what Craig calls “epistemological naturalism”). Moving on:

Remember the case of W.V.O. Quine, “but if God does not exist, then I think metaphysical naturalism is true.” Metaphysical naturalism doesn’t follow from epistemological naturalism, but it does follow from atheism. The most plausible form of atheism is I think metaphysical naturalism, but there are all those absurd consequences that result from that that I described. He [Rosenberg] bites the bullet and affirms these bizarre consequences. Why not stand back and say, “No, this is crazy; this is not the world we live in”?

So Craig’s set of arguments against naturalism is not a complete red herring because Craig’s reasoning seems to be like this:

  1. If atheism is true, then metaphysical naturalism is true.
  2. Metaphysical naturalism is not true.
  3. Therefore, atheism is not true.

Craig would need to justify premise (1) though and he didn’t quite do that in the debate. Moreover, the support Craig gives for premise (2) is Rosenberg’s own claims about what science implies. Granted, it stands to reason that if Rosenberg believes science implies it, then Rosenberg similarly believes that naturalism + background information (including science) = those far-out claims being true. Still, that support for the first premise seems awfully weak. Why? To echo a bit from what I said about Craig’s argument from intentional states of consciousness in the world, Rosenberg could have said something like:

I don’t believe it is naturalism per se that implies things like sentences not having genuine meaning, but rather our background knowledge, especially science, that implies such claims. But because whether I’m right about what science implies about this is not the subject of tonight’s debate, and because I could be wrong about what our background knowledge implies, I’ll play devil’s advocate here so you can better judge for yourselves whether we’re justified in thinking that atheism plus background knowledge implies things like sentences not really having meaning.

At which point, Rosenberg could have challenged Craig’s justification for the first premises and continued to hammer Craig’s failed attempts in justifying the first premises throughout the debate, if he chose to address Craig’s argument from naturalism at all. If he did not want to do that, he could have said this:

It should be remembered that tonight I’m arguing that theism is false, not that naturalism is true. Craig seems to think that naturalism is the most plausible alternative to atheism, but that won’t matter if atheism plus our background knowledge does not imply the apparently absurd consequences he thinks they do. So for Craig’s arguments to be relevant, Craig would need to show that atheism plus our background knowledge implies those consequences. I don’t believe it’s atheism or naturalism per se that implies things like sentences not having genuine meaning, but rather our background knowledge, especially science, that implies such claims. But because whether I’m right about what science implies about this is not the subject of tonight’s debate, and because I could be wrong about what our background knowledge implies, I’ll play devil’s advocate here so you can better judge for yourselves whether we’re justified in thinking that atheism plus background knowledge implies things like sentences not really having meaning.

At which point, Rosenberg could have pointed out that Craig didn’t really given any justification for the idea that atheism plus background knowledge implies those consequences, and it would have been Craig who wasted a bunch of time (it took a bit of time arguing for all those arguments against naturalism), not Rosenberg.

Again I’d like to stress the importance of thinking analytically, especially when debating an analytic philosopher theist like Craig. Craig, for all his faults, typically presents arguments in which the conclusion follows from the premises when he presents deductive arguments. Notice that while all of Craig’s arguments against naturalism may be unsound, they at least have the decency to be valid in the sense that the conclusion follows logically and necessarily from the premises. At that point, the question becomes whether the premises are true and justified. If a theist presents a valid argument, the onus is on him to justify the premises. If a theist has failed to adequately justify an important premise in a debate, it’s the atheist’s duty to point it out.

Thursday, May 30, 2013

William Lane Craig versus Rosenberg (part 8)

My series on the February 2013 debate between William Lane Craig and Alex Rosenberg:
  1. The Leibnizian Cosmological Argument
  2. The Kalam Cosmological Argument
  3. The Applicability of Mathematics to the Physical World
  4. The Fine-Tuning of the Universe for Intelligent Life
  5. Intentional States of Consciousness in the World
  6. Objective Moral Values and Duties in the World
  7. God can be Personally Known and Experienced
  8. The Argument from Evil
  9. Wrap-Up

Introduction

In February 2013 atheist philosopher Alex Rosenberg debated Christian philosopher William Lane Craig over whether faith in God is reasonable (debate begins at around 17:14). I’ve mentioned before the reason why William Lane Craig wins debates, and since this debate is a good example of how not to debate William Lane Craig, I have been going through some of what Rosenberg did wrong and how he could have done a lot better. One happy benefit from this is that in so doing I’ll also be refuting William Lane Craig’s arguments. In this entry I’ll address Craig’s claim that God can be personally known and experienced.

God can be Personally Known and Experienced

At around 35:08, Craig claims that God can be personally known and experienced. By Craig’s own admission, this isn’t really an argument for God’s existence so much as a claim that God can known to exist wholly apart from evidence and arguments. In philosophy lingo, beliefs that one is justified in believing apart from evidence and arguments are called properly basic beliefs. One might think that belief in the reality of the past is a properly basic belief. Craig (as with many other Christian philosophers, e.g. Alvin Plantinga) holds to the view that belief in God is properly basic.

What Rosenberg did

Rosenberg didn’t address this at any point in the entire debate.

What Rosenberg should have done

I suppose it’s debatable whether Rosenberg should have ignored this, since as I said (and even by Craig’s own admission!) it’s not really an argument. That said I think it’s good to address the claim anyway. Is the existence of God a properly basic belief? On some conceptions of theism, a person can experience the presence of God and so can be rational in believing in his existence apart from evidence and arguments. I think such a theist would be rational in accepting theism if this conception of theism were true. But of course whether God exists is the very topic under discussion. So this claim (as Craig said, it’s not really an argument) that God can be personally known and experienced can be refuted simply by refuting theism. And for that, the argument from evil serves us nicely.

Wednesday, May 29, 2013

William Lane Craig versus Rosenberg (part 7)

My series on the February 2013 debate between William Lane Craig and Alex Rosenberg:
  1. The Leibnizian Cosmological Argument
  2. The Kalam Cosmological Argument
  3. The Applicability of Mathematics to the Physical World
  4. The Fine-Tuning of the Universe for Intelligent Life
  5. Intentional States of Consciousness in the World
  6. The Historical Facts about Jesus of Nazareth
  7. Arguments Against Naturalism
  8. The Argument from Evil
  9. Wrap-Up

Introduction

In February 2013 atheist philosopher Alex Rosenberg debated Christian philosopher William Lane Craig over whether faith in God is reasonable (debate begins at around 17:14). I’ve mentioned before the reason why William Lane Craig wins debates, and since this debate is a good example of how not to debate William Lane Craig, I have been going through some of what Rosenberg did wrong and how he could have done a lot better. One happy benefit from this is that in so doing I’ll also be refuting William Lane Craig’s arguments. In this entry I’ll address Craig’s argument from the resurrection of Jesus..

The Historical Facts about Jesus of Nazareth

Craig’s argument, which begins at 32:13:

  1. There are three established facts about Jesus:
    • the empty tomb,
    • the post-mortem appearances, and
    • the origin of the disciples’ belief in his resurrection.
  2. The hypothesis, “God raised Jesus from the dead” is the best explanation of these facts.
  3. The hypothesis “God raised Jesus from the dead” entails that God exists.
  4. Therefore, God exists.

Craig believes the above argument is a good inductive argument for God’s existence.

What Rosenberg did

Rosenberg begins his rebuttal at around 53:10. He talks about Mormonism, Islam, and Scientology, noting how we don’t believe those religions. Unfortunately he doesn’t quite attack any premise of Craig’s inductive argument. Charitably, we could interpret Rosenberg as saying something like, “Just as we disbelieve those religious claims, so we should believe the claims of the New Testament.” But since (so Craig claims) most historians accept the three facts of Jesus of Nazareth whereas they presumably do not accept the claims of Mormonism, Islam, and Scientology that we reject, there is a kind of asymmetry here that Rosenberg needs to pry apart.

Rosenberg also notes how eyewitness testimony can be unreliable. While it can be, this is the sort of claim that can prove too much; pretty much all of ancient history taught in universities is based on nothing less than eyewitness testimony. Yet it seems a bit harsh that we should get rid of all beliefs of ancient history that depend upon that sort of thing, else we’d scarcely have any ancient history to teach at all. As Craig points out in the debate, Rosenberg needs to give specific reasons not to trust the eyewitness testimony in the case of the Resurrection, not simply give a general claim about the unreliability of eyewitness testimony (actually, as I’ll show later, Rosenberg could also have pointed out a couple holes in Craig’s opening statement regarding the resurrection argument).

Rosenberg, claims (at around 1:39:05 onward) that all scholars tell us the New Testament was written by illiterate people. Writing ancient Greek documents would indeed be impressive if the authors couldn’t read, but it seems unlikely (and it seems similarly unlikely that New Testament scholars would believe such a thing!). Rosenberg may have bungled his words here and meant to have communicated that some Christians were illiterate even if the authors of the documents were not, but this point seems irrelevant to the truth of those documents and he should have used a relevant argument instead.

At around 1:39:26, he says that the original manuscripts were written in Aramaic, thereby showing his ignorance of New Testament scholarship (they were actually originally written in Greek). Rosenberg also claims the opportunity for mistranslation, mis-transcription, and other mistakes is huge and has been documented by scholarship in the last 200 years (in actuality, scholars believe that our reconstruction of the New Testament from extant manuscripts matches extremely close to the originals—one is much better off attacking the veracity of the originals themselves), and thus displays an further lack of preparation for the debate.

What Rosenberg should have done

When one watches Craig’s opening statement, the way to attack Craig’s claims seems kind of obvious once one realizes certain facts. Craig never offers any source for his claim that most New Testament historians accept his three claims. Even ignoring that, there would be the somewhat obvious concern that about whether most of these New Testament historians who accept the three claims are already Christians. And apart from Craig’s questionable appeal to authority (and he also appeals to the opinion of the religiously motivated Christian scholar N.T. Wright), he doesn’t offer any reason to believe that these three claims are true! It’s as if these holes in Craig’s resurrection argument entirely escaped Rosenberg’s notice (considering his bizarre attack on eyewitness testimony in general) and Rosenberg could have followed Craig’s opening statement with something like this:

Craig bases his resurrection argument upon three claims that he says most New Testament historians accept. But what’s Craig’s source that most New Testament historians accept these three claims? A scientific survey or anecdotal evidence? We are not told. Moreover, it’s not even clear whether most New Testament historians accepting these three claims should be grounds for the non-Christian to accept them, because what if the reason the New Testament scholars accept those claims is because they’re already Christians? Craig might believe there are good reasons for a secular historian to accept his three claims, but what are they? Craig hasn’t told us that either. And of course, saying we should accept these three claims because the Bible says these claims are true would be question begging; such reasoning wouldn’t be accepted by someone who wasn’t already a Christian. So all things considered, Craig has not given adequate evidence to believe the resurrection occurred, because he hasn’t given us adequate grounds to accept his three claims and he hasn’t even given us any grounds for thinking the majority of New Testament historians accept his three claims.

The above rebuttal contains these two important objections: (1) Craig hasn’t justified his claim that most New Testament historians accept his three claims; (2) Craig hasn’t given any reasons a secular historian would accept these three claims. Notice how serious these problems are for Craig’s resurrection argument. Yet, incredibly, instead of pointing out these gaping holes in Craig’s opening statement, Rosenberg attacks eyewitness testimony in general! It’s almost as if Rosenberg didn’t notice how Craig actually presented his resurrection argument. (To his credit, Rosenberg at least asks at around 1:39:48, possibly referring to Craig’s use of Christian scholar N.T. Wright, “why should we accept the credibility of Christian scholars writing about Christian documents?”)

When debating theists who are analytic philosophers like William Lane Craig, it behooves atheist debaters to themselves think analytically. There were important and specific claims Craig didn’t justify. Rosenberg should have clearly identified those specific claims and pointed out that Craig didn’t justify those specific claims (as I did in my “Craig bases his resurrection argument upon three claims...” paragraph above). This direct approach against Craig’s resurrection argument would worked much better than, for example, attacking the reliability of eyewitness testimony in general or talking about how we don’t accept the claims of scientology, because otherwise the real holes in Craig’s argument don’t get exposed.

So much for Craig’s opening statement. What about later? In his first rebuttal to Rosenberg, Craig claimed (at around 1:11:17 onward) that we’re dealing with “early eyewitness testimony” but doesn’t specify how we know this apart from the insinuation that we know it from the Gospels (which is good if you’re already a Christian, but otherwise...). Later at around 1:44:20, he says that the sources we have for the resurrection of Jesus go back within five years of the event, and he gives no argument or evidence for this claim. Rosenberg should have called Craig on out all this.

Sunday, May 19, 2013

William Lane Craig versus Rosenberg (part 6)

My series on the February 2013 debate between William Lane Craig and Alex Rosenberg:
  1. The Leibnizian Cosmological Argument
  2. The Kalam Cosmological Argument
  3. The Applicability of Mathematics to the Physical World
  4. The Fine-Tuning of the Universe for Intelligent Life
  5. Objective Moral Values and Duties in the World
  6. God can be Personally Known and Experienced
  7. Arguments Against Naturalism
  8. The Argument from Evil
  9. Wrap-Up

Introduction

In February 2013 atheist philosopher Alex Rosenberg debated Christian philosopher William Lane Craig over whether faith in God is reasonable (debate begins at around 17:14). I’ve mentioned before the reason why William Lane Craig wins debates, and since this debate is a good example of how not to debate William Lane Craig, I have been going through some of what Rosenberg did wrong and how he could have done a lot better. One happy benefit from this is that in so doing I’ll also be refuting William Lane Craig’s arguments. In this entry I’ll address Craig’s moral argument for God.

Objective Moral Values and Duties in the World

In the debate Craig gives the following argument:

  1. Objective moral values and duties exist.
  2. But if God did not exist, then objective moral values and duties would not exist.
  3. Therefore, God exists.

What Rosenberg did

Around 48:49, Rosenberg starts his rebuttal against the moral argument. Rosenberg brings up Euthyphro dilemma, which doesn’t attack either premise of the moral argument Craig actually gave. The Euthyphro objection is an argument against the idea that only God can underwrite human values, but no premise of the argument assumes this. The Euthyphro objection doesn’t refute premise 2 here, since even Rosenberg agrees with premise 2 (he believes atheism + background knowledge = objective moral values and duties probably don’t exist). Remarkably, Rosenberg doesn’t attack either premise of the argument at all. That’s right, Rosenberg never disputes any premise of the argument in the entire debate.

Craig doesn’t call him out on this, perhaps because he believes that God does underwrite objective morality and to save time he thought he’d kill two birds with stone and simply attack the Euthyphro dilemma (thereby defending the moral argument and his belief that God grounds morality) by presenting a third alternative to the dilemma (1:10:39). Still, Craig does point out that Rosenberg agrees with him on premise 2 at 1:29:14 and re-affirms premise 1, and notes that the conclusion follows from premises 1 and 2. Rosenberg had no response to this.

One problem with Rosenberg’s Euthyphro objection, other than the fact that it doesn’t attack Craig’s argument, is that Craig has repeatedly given a third alternative in his writings and talks. One might argue that Craig’s third alternative is unsatisfactory in some way, but the point is that Rosenberg was completely unprepared for Craig’s rebuttal. If you are going to use the Euthyphro dilemma against Craig in a debate, you should at least be prepared for the “third alternative” response.

Craig’s moral argument is deductively valid (the conclusion follows from the premises) even if it is unsound (where soundness = validity + true premises), which makes Rosenberg’s main failure with the argument worth repeating: Rosenberg never disputes a premise of the moral argument in the entire debate. This is almost unconscionable once one realizes that a false premise is the only way Craig’s moral argument could fail to be sound.

What Rosenberg should have done

Even if Rosenberg agrees with premise 2, he could have attacked the justification Craig gave for premise 2. Craig claimed that walking into an elementary school and shooting boys, girls, and teachers is morally wrong before asserting, “on a naturalistic worldview, there’s nothing really wrong with this.” Two things: (1) naturalism does not equal atheism; (2) naturalism by itself doesn’t say either way whether moral wrongness exists. I attacked premise 2 (and premise 1) already in my series on the moral argument and William Lane Craig. Craig presented a deductively valid moral argument for God; it should be common sense that the way to refute a deductively valid argument for God is to attack the premises, but apparently it isn’t, not even to a philosopher of Rosenberg’s caliber.