Tag Archives: Evidence

Commentary

Is absence of evidence for God evidence of his absence?

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From Christopher Copan Scott. (H/T The Poached Egg)

Excerpt:

There is a central question that must be answered in the philosophy of religion: Is absence of evidence, evidence of absence? The answer is that it all depends on what the thingin question is.

Examine these two scenarios:

Suppose in S1 (scenario one) Bob is invited on a challenge to find one golden ant, the only golden ant, and it happens to be somewhere in the 1.7 billion acres known as the Amazon Rainforest. If you were to find this one golden ant in 24 hours you would be rewarded with a large sum of money. Furthermore, suppose Bob the contestant is unsuccessful in this challenge and as a result complains to the organizers of the event saying that because he could not find the golden ant, it therefore does not exist. The problem with his complaint is that in S1, the absence of evidence for this one golden ant, gives little to no justification for you to conclude the non-existence of it.

Let us go on to S2. Here Bob is confronted with a similar challenge, instead he is not trying to find an ant but an elephant, and the environment is not the Amazon Rainforest, but his small office room. In S2, one’s assertion that the lack of evidence of the elephant in his office is evidence of absence of the elephant would be warranted.

This demonstrates that the absence of evidence is evidence of absence for the existence of a particular entity, if and only if it meets the following two conditions:

1)      If the postulated entity were to exist, we should expect to have some evidence of its existence.

2)      We have thoroughly examined the area which we would expect to find the entity.

Now what does this mean when it comes to the existence of God? This means that those who assert that the lack of evidence for the existence of God provides sufficient grounds to assert that this is evidence of absence must take the burden of proving (1) and (2).

This debate has been taken up in what is called the hiddenness of God. So at the least, in order to assert that the absence of evidence is evidence of absence for God one is required to provide justification for this claim.

For a longer treatment of the question of the hiddenness of God, please see a paper by philosopher Michael Murray, which I discuss in this post. This is an important philosophical problem that rarely comes up in the formal academic debates that we all love to watch with William Lane Craig. On a related note, it’s worth taking a look at the concept of burden of proof as it relates to the problems of evil and suffering. There are lots of links to lectures and essays in that post.

Commentary

Prominent atheist philosopher gives mixed review of intelligent design

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Consider this report on a peer-reviewed assessment of intelligent design by the prominent atheist philosopher Thomas Nagel.

Excerpt:

Prof. Thomas Nagel, a self-declared atheist who earned his PhD. in philosophy at Harvard 45 years ago, who has been a professor at U.C. Berkeley, Princeton, and the last 28 years at New York University, and who has published ten books and more than 60 articles, has published an important essay, “Public Education and Intelligent Design,” in the Wiley InterScience Journal Philosophy & Public Affairs, Vol. 36, issue 2…

[…]Prof. Nagel’s paper is a significant and substantial opening, at America’s highest intellectual level, that encourages all intelligent, educated, informed individuals — particularly those whose interest in this issue derives from intellectual curiosity, not the emotional advocacy excitement for any side — that it is legitimate as a matter of data, science, and logic, divorced from all religious texts and doctrines, to consider that intelligent design may be a valid scientific approach to understanding how DNA and the complex chemical systems of life came to attain their present form. Prof. Nagel’s article is well worth the price to put it in the library of any inquiring mind.

The actual paper is here.

Now for the summary of the paper, with supporting quotes:

Professor Nagel has read ID-supportive works such as Dr. Behe’s Edge of Evolution (p. 192). He reports that based on his examination of their work, ID “does not seem to depend on massive distortions of the evidence and hopeless incoherencies in its interpretation” (pp. 196-197). He reports that ID does not depend on any assumption that ID is “immune to empirical evidence” in the way that believers in biblical literalism believe the bible is immune to disproof by evidence (p. 197). Thus, he says “ID is very different from creation science” (p. 196).

Prof. Nagel tells us that he “has for a long time been skeptical of the claims of traditional evolutionary theory to be the whole story about the history of life” (p. 202). He reports that it is “difficult to find in the accessible literature the grounds” for these claims.

Moreover, he goes farther. He reports that the “presently available evidence” comes “nothing close” to establishing “the sufficiency of standard evolutionary mechanisms to account for the entire evolution of life” (p. 199).

He notes that his judgment is supported by two prominent scientists (Marc Kirschner and John Gerhart, writing in the Oct. 2005 book Plausibility of Life), who also recognized that (prior to offering their own theory, at least) the “available evidence” did not “decisively settle[]” whether mutations in DNA “are entirely due to chance” (p. 191). And he cites one Stuart Kauffman, a “complexity theorist who defends a naturalistic theory of emergence,” that random mutation “is not sufficient” to explain DNA (p. 192).

Prof. Nagel acknowledges that “evolutionary biologists” regularly say that they are “confiden[t]” that “random mutations in DNA” are sufficient to account for “the complex chemical systems we observe” in living things (p. 199) — but he disagrees. “Rhetoric” is the word Professor Nagel uses to rejects these statements of credentialed evolutionary biologists. He judges that the evidence is NOT sufficient to rule out ID (p. 199).

He does not, however, say that the evidence compels acceptance of ID; instead, some may consider as an alternative to ID that an “as-yet undiscovered, purely naturalistic theory” will supply the deficiency, rather than some form of intelligence (p. 203).

In light of these considerations, Prof. Nagel says that “some part of the high school curriculum” “should” include “a frank discussion of the relation of evolutionary theory to religion” but that this need not occur in biology classes if the biology teachers would find this too much of a “burden” (p. 204). Significantly, Prof. Nagel — who is a professor of law as well as a professor of philosophy — concludes that, so long as the proposal is not introduced by religiously-motivated persons “as a fallback from something stronger,” but by persons “more neutral” or “without noticeable religious beliefs,” it would be constitutional to “mention” ID in public school science classes, because doing so genuinely furthers “the secular purpose of providing a better understanding of evolutionary theory and of the evidence for and against it” (p. 203). He makes clear that the “mention” must be a “noncommittal discussion of some of the issues” (p. 205).

So Nagel does NOT think that ID is a slam dunk, just that it is worth considering in science classrooms. Teach the controversy, that’s always the right approach. Be open-minded. Look at the evidence before you decide.

Polemics

What Christians can learn from atheists about making truth claims

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I found this post from Simple Apologetics through Brian Auten’s Apologetics 315 Twitter feed, which discusses what Christians can learn from atheism with respect to bearing the burden of proof for Christian truth claims.

Excerpt:

For instance, many atheists also call themselves “free thinkers”, a title suggesting that they are not beholden to any one perspective, but always open to following wherever reason and evidence may lead. As the current description of “Freethought” on Wikipedia reads:

Freethought holds that individuals should not accept ideas proposed as truth without recourse to knowledge and reason. Thus, freethinkers strive to build their opinions on the basis of facts, scientific inquiry, and logical principles, independent of any logical fallacies or intellectually limiting effects of authority, confirmation bias, cognitive bias, conventional wisdom, popular culture, prejudice, sectarianism, tradition, urban legend, and all other dogmas. Regarding religion, freethinkers hold that there is insufficient evidence to support the existence of supernatural phenomena.

Of course Christians will disagree about the basic tenets of freethought in regards to religion, but the first section of this description is one that nearly everyone should be able to gladly affirm. (We might want to broaden what counts as a legitimate basis for our opinions to include testimony from others, memories, and other ‘properly basic’ beliefs, but I digress).

In this regard, atheists (and others) who denounce a fideistic approach to religion are doing religious people a great service. Whenever the claims of faith are said to be outside of rational investigation, it creates a great challenge for everyone else. To take a small scale example, I once knew a student who would occasionally cancel Bible studies because “God told me that we should not meet today.” The truth of the matter was more likely that she was behind in her homework! Her ‘prophetic’ explanation was frustrating and a conversation stopper, but it also came across as fairly disingenuous, and it eroded the trust in our relationship.

A similar, but more significant, problem exists when Christians say “you just have to take it on faith” or “you just need to believe” or “pray about it and it’ll become clear to you” when confronted with difficult challenges to their beliefs. These words initially sound good, and pious, and noble, but upon reflection (or hearing them one too many times), they start to sound like an intellectually lazy way of avoiding the problems. When atheists (or others) criticize Christians for this, they are calling us to a higher level of reason, thoughtfulness, and conversational engagement with other viewpoints.

This process—of going from conviction, to being challenged, to doubt about our own ideas, to investigation, to fresh conviction—should be celebrated. It is okay to not have answers and it is okay to change our minds as we continue to learn and grow. Going through the emotionally wrenching experience of uncertainty is necessary if we are to process the complexity of contemporary challenges to religious belief (or, alternatively, the current arguments against atheism).

Many people know that I don’t get along well with fideistic Christians and that I can barely keep myself from running out of the church because there is often very little thinking and arguing going on in there. Everywhere I look I see postmodernism, religious pluralism, socialism, and moral relativism. Feelings have replaced thinking, and everyone afraid to offend other people by expressing and defending an idea as correct. Part of that is because no one knows why they believe anything, anymore, and they are too busy having fun to study anything to see if they are right.

But, as I wrote before, the Bible’s definition of faith is “trust based on evidence”. In that post, I give three lines of argument that faith is NOT  something you either prefer to believe or not, apart from evidence and arguments. The  Old Testament and New Testament agree that people need to rest their trust in God based on arguments and evidence, “that they may know for certain”. That phrase is quoted in both the Old and New Testaments. Know For Certain.

That’s actually why Jesus performed miracles. He made assertions about the spiritual world, and then he gave evidence of his authority to make those pronouncements by healing the sick, etc. and even by rising from the dead. The question for us today is – since we can’t perform miracles, are there any alternatives left to us that can take the place of miracles? And the answer is yes. We can use philosophical arguments, and hard evidence from science and history.

Positive arguments for Christian theism

Responses to arguments against Christian theism

Rebuttals and refutations of arguments against Christian theism are listed here, e.g. – the problems of evil and suffering, the problem of the unevangelized, the problem of religious pluralism, the problem of divine sovereignty vs. human freedom. You can also find some positive historical arguments for Christianity in particular on that page. Formal academic debates featuring prominent atheists like Christopher Hitchens and James Crossley abound on Youtube. There is no excuse for not being prepared to explain and defend.