Debunking Denialism

Defending science against the forces of irrationality.

Questioning Evolution…by Spouting the Same Old Creationist Canards

I am frequently amazed at individuals who sincerely put forward what they consider strong “arguments” in favor of a particular form of pseudoscience when these assertions have already been debunked and destroyed thousands and thousands of times. I often wonder if these people have even bothered to perform a simple Internet search to see if those arguments have been rebutted before. After all, there are many websites on, for instance, evolution that efficiently refutes creationist arguments (such as Index to Creationist Claims). Then again, if they used the Internet for gathering credible scientific information, they might decide against making such arguments.

The Youtube user Khalid Elmekki recently uploaded an anti-evolution video entitled Questioning Evolution. In it, he put forwards some classic creationist assertions that lack any evidential or rational support whatsoever. Let us take them apart, one by one.

Evolution is not a belief

Throughout the video, Elmekki insinuates that evolution is a belief system. On the contrary, evolution is a well-supported scientific explanation for the observed diversity of life, backed up by tons and tons of evidence. One can read about some of this evidence in the National Academy of Sciences publication Science, Evolution, and Creationism or in the online book 29+ Evidences for Macroevolution: The Scientific Case for Common Descent by Douglas Theobald. Even the Wikipedia article on the evidence for common descent gives a good introduction to the topic.

Saying you “believe” in evolution is just as silly as saying that you “believe” in gravity. Evolution, gravity or any other scientific model is not something you believe in, it is something you accept based on the evidence.

Creationists use the term “Darwinism” as a rhetorical tool

Originally, the phrase “Darwinism” use to refer to the Darwin’s models for evolutionary biology, predating the New Synthesis. This was done to distinguish it from other forms of biological change over time, such as Lamarckism and Mutationalism, and from religious doctrines for the origin of different kinds of species such as creationism.

Today, creationists use the term “Darwinism” to make it look like modern evolutionary biology is an ideology (-ism) and not science, and to suggest that “Darwinism” and creationism are two different -isms on the same level. In reality, modern evolutionary biology is a well-supported scientific explanation, whereas creationism is pseudoscience that does not accurately describe reality. Read more of this post

Evidence-Based Debunking

debunking handbook

The Debunking Handbook is a very short text by John Cook and Stephan Lewandowsky on evidence-based debunking that was released about a year ago. The general message of the handbook is that debunking is tricker than it seems. If you do it wrong, you can enforce the falsehoods and myths, rather than undermining their influence.

The Debunking Handbook will not provide you with arguments against any specific form of pseudoscience. Rather, it will help you maximize the impact of your own refutations by making them less likely to backfire. This post will examine the tips given in the Debunking Handbook (free to download), then make a few homemade examples of how an evidence-based debunking could look like.

Familiarity

Mentioning a myth creates a sense of familiarity, and familiarity increases the likelihood that people will accept a myth as true. So how do you debunk a myth without spreading it? The key is to put emphasis on the facts, not the myth. Using the myth as a big and bold headline is a huge mistake — people will forget the details of your debunking over time but remember the title, which reinforces the myth. So make readers familiar with the facts, not the myth. Read more of this post

An Intellectual Re-evaluation of the “Schrödinger’s Rapist” Analogy

Note: while this post attempts to highlights some of the limitations I perceive with the “Schrödinger’s rapist” post, I accept most of the central claims made in the analogy (such as don’t rape, that women set their own risk tolerance, that men need to be aware of the first person cognitive evaluation made by women, respecting women and don’t harass them etc.). Therefore, this evaluation should not be understood as providing any support whatsoever for men’s rights activism (MRA) and/or those strongly opposing the “Schrödinger’s rapist” analogy. See “Summary” for a short explanation of what I think of the analogy if you don’t feel like reading through the entire post.



schrodinger

There is one special blog post that has become iconic for social justice vigilantes online. It got over a thousand comments in five days (on a relatively small blog) before the comment section was closed and has probably been linked and shared thousands and thousands of times. I am, of course, talking about the “Schrödinger’s Rapist” analogy, composed by Phaedra Starling on the now defunct blog called Shapely Prose.

Needless to say, the blog post caused a storm of both approval and praise, but also criticism and vitriolic hate. However, as the dust slowly settles, I think it is time to take a close, disinterested look at the advantages and drawbacks of the analogy. As we will see, it correctly captures something fundamental about the experience of women and the general message of the blog post is genuine and reasonable. However, it does not fully appreciate the complexity of the situation and also makes a couple of statistical and factual errors that should be acknowledged.

Strengths

I find that the strengths of the Schrödinger’s rapist analogy primarily lie in the emotional impact of the text on the reader who genuinely did not understand the inside cognitive view of being a woman in such a social context. I have separated the strengths into four different categories: common sense, conscious-raising, empathy and realism.

Common Sense: the blog post makes a lot of common sense points that every rational person should accept. These include things like don’t rape, don’t grope, don’t threaten with or use physical force, as well as the importance of social context when trying to approach women. If everyone would understand and implement these lessons in their everyday life, the world would be a much better place.

Conscious-raising: reading and understanding the innermost thoughts and feelings of someone is a very conscious-raising experience. Things that you either did not know at all, or suspected but never fully appreciated the scope of, can become abundantly clear in an instant. The “Schrödinger’s rapist” analogy is a very good conscious-raising piece for those that did not understand the specifics of the experience of women in this context.

Empathy: because the analogy portrays the cognitive inside view of how it is sometimes like to be a women and thereby taps into empathy and compassion, the central points makes a much stronger impact than if it merely was a cold reporting of facts.

Realism: the “Schrödinger’s rapist” analogy may very well realistically explain the experience of many women around the world. It does not appear to be written in an exaggerated form just to cause controversy, but to be a genuine piece with an important message. Of course, it does not necessarily represent the view of all women but judging by the support it has garnished so far among various Internet feminists, it does not appear to be a fringe view either.

Drawbacks

There are also a few weaknesses with the blog post. These are primarily statistical and factual mistakes.

Quantum quackery: the analogy uses the phase “Schrödinger’s rapist” to indicate that a given women does not know for a fact if the man is a rapist or not. She can only assign subjective probabilities (corresponding to degrees of belief) for the two competing hypotheses. While this is true, it is unfortunate that Starling alluded to quantum mechanics in naming the analogy. Had the women had complete knowledge of the situation (including the man’s intentions), there would probably not have been much doubt regarding whether or not the man would rape her or not. This is not the case for quantum-scale particles. The uncertainty principle does not exist due to imperfect measuring equipment, but is a fundamental aspect of nature. It does not involve subjective degrees of belief.

Two thoughtful counterarguments can be made to this objection: Read more of this post

Responding to Incoherent Anti-Psychiatry Drivel

crank comment

A person going by the name of Alan David Anderson decided to post a few comments loaded with anti-psychiatry drivel on an older blog post I wrote. It is a garbled mix of assertions, such as that I am stupid and an ignorant fool, that psychiatrists have worthless educations, that anti-psychotics and anti-depressants are used to euthanize elderly that lack a balanced diet and that people with mental conditions are just obese.

Normally, I would have responded in the comment section of that blog post or just deleted his crap. However, it is the holiday season, I am feeling particularly charitable. Not that I think this will change his mind, but hopefully will give my readers something informative and perhaps something to chuckle at. Also, it is free blogging material for me at a time when I have more important things to do. Therefore, I will give his assertions a fair hearing in a new blog post. As we will see, they do not fare well.

The first comment

Mr. Anderson started his objections to psychiatry by posting the following:

wonderful sight thanks for leting me clear up the fact that you have no education that is legit it in this subject. psychiatrists have worthless educations. psychiatrists drugs are not needed under any circumstances. they give synthetic drugs that resemble things that are naturally produced. why would we need them? you simply do not need them at all. you ignorant fool. you cannot win an argment with me. you HAVE NO EDUCATION ON THE SUBJECT.

Mr. Anderson is correct in that I am not a psychologist, psychiatrist or psychotherapist. I have no formal training in any of these subjects. However, that says nothing about the credibility of the arguments I put forward. Arguments stand on their own evidential and logical merit and their truth does not depend on who puts them forward.

Throughout his three comments, Mr. Anderson makes no effort to engage in the arguments I actually do put forward. This shows an unwillingness to have an honest discussion about the reasonableness of those arguments. Mr. Anderson does not appear interested in a reasoned debate, but rather to spread his bare assertions. Nowhere in his comments does he provide any empirical evidence for his assertions or links to any sources.

Contrary to what Mr. Anderson claims, psychiatrists do not have a worthless education. In the United States, a psychiatrist must first complete an M. D. and then spend four years as a psychiatric resident (American Psychiatric Association, 2012). Thus, psychiatry is like any other medical specialty in terms of educational requirements. This is hardly a “worthless education”.

While mental conditions are not quite as simple as “chemical imbalance”, treatments that modify neurochemistry in individuals with some mental conditions has shown to be very effective. I have written at length about this in other blog posts, such as here and here.

Mr. Anderson calls me an ignorant fool, yet provides no evidence to why we should believe him. He repeats his claim that I have no education on the subject and triumphantly claim that I cannot win an argument with him. Actually trying to convince someone who has sunken so deep into pseudoscience as Mr. Anderson has is very difficult and largely a waste of time. However, my goal here is not to convince him that he is wrong, but to convince fence sitters of the rationality of scientific skepticism and science-based medicine as well as giving supporters of these two concepts useful things to read. Read more of this post

New Twitter, Facebook and Email!

I finally got around to making some social networking accounts for Debunking Denialism to better keep in touch with my readers and expand the community.

Email

The email address you can use to contact me about matters related to this blog is now:

email

The contact form on the about and contact page now uses this email address instead of my personal one.

Twitter

A sparkling new Twitter account for this blog has been set up: @debunkdenialism (the proper blog name was too long)

Twitter

You can still follow me on my personal Twitter account (@EmilKarlsson).

Facebook

Lastly, I have also set up a Facebook page for Debunking Denialism where you can follow, like and discuss. I will be posting blog updates and miscellaneous stuff on pseudoscience on that page. Feel free to share with friends.

Not much, but a start. I know that some of you have been wanting me to do this for quite some time. So there you go. Have at it.

When HIV/AIDS Activism Goes Wrong

virus

A few days ago, a guest post by HaifischGeweint appear on the Crommunist blog over at the Freethought Blogs network. It is about the stigma attached to individuals with HIV/AIDS and focuses on laws requiring individuals that are HIV positive to let their sexual parters know before engaging in sex. HaifischGeweint appears to label these laws “institutionalized HIV/AIDS discrimination”.

Just so there are no misunderstandings

Just to make sure that we are reducing the risk of misunderstandings, let us get some things clear. HaifischGeweint clearly states that he or she “very strongly disagree with engaging in unprotected sex without first having an honest conversation about STIs and safer sex (no matter what your status)”. HaifischGeweint is also careful to point out that he or she “cannot stand by someone who lies about their status when asked about it or who (regardless of their status) deliberately avoids getting tested and/or practising [sic] safer sex. Full stop.”

Second, people with HIV/AIDS experience a lot of stigma. A lot of people just assume that HIV+ individuals have been sexually promiscuous without using protection, even if the HIV infection was the result of rape, having sex with a long-term partner that cheated on you or getting contaminated blood during surgery. We should do everything within reason to work together against irrational stigma against people with HIV/AIDS. But no matter how noble the goal is, we should not promote scientific falsehoods in order to achieve it (see below).

HIV, sex and informed consent

I am not going to spend a whole lot of text on the main issue here, because there are other serious problems with the blog post (see below), but I think it is clear that informed consent is important when it comes to sex (and most other serious human activities). In a perfect world, everyone would get tested, ask their partner about sexually transmitted infections and tell them if they have any as well as use protection. Unfortunately, this is a fantasy. It does not exist, and it does not appear to be reachable within the foreseeable future. So how should society protect people from being at uninformed risk of being infected by HIV? One avenue is via the legal system, where a person with HIV/AIDS is punished when he or she has sex with another person who has been denied informed consent. Should the punishment be 25 years in prison if there was no intention? That seems a bit excessive, but then again, I am not a legal scholar.

I find it quite ironic that HaifischGeweint seems to put a lot of responsibility onto the other person to ask about HIV status compared with the responsibility of the person with HIV telling about his or her status. In reality, how much different, in terms of emotional difficulty, is it to say that one has HIV compared with answering “Do you have HIV?”? Although I do not know for sure what the difference is in terms of emotional impact, I think it is safe to say that both are emotionally difficult. But let’s flip the situation over. Imagine having HIV and that your partner has another sexually transmitted infection that will substantially decrease your health and quality of life as well as the capacity of your immune system. Surely, you would want him or her to tell you? So the value of informed consent really goes both ways. This would lead me to conclude that both the person with HIV/AIDS and the other person both have a moral responsibility to have an open and honest conversation about sexually transmitted infections before having sex.

So what is the main problem? Read more of this post

Mailbag: A Concern Troll (?) Tries to Talk About Race and IQ

A reader sent me an email about some arguments put forward by race realists, told me he did not know a good way to refute them and asked me for my take on it. I am not convinced he is a concern troll, but some of the language he used and the fact that the quotes of his opponents cannot be found on the Internet makes me suspicious. However, because it is so hard to tell, I will try to be charitable. The person asked not to have his name posted, so I will just refer to him as “he” or “the reader” below.

Hey there. I found your blog a month or two ago when I started researching the topic of racial IQ differences. Lately, I’ve been debating some people over the internet about this subject using some of the information that you and other egalitarians have provided. As expected, the folks who I was talking with didn’t like what they heard and responded with ad hominem attacks, but there was one point someone brought up that I simply couldn’t respond to.

For me, phrases that stand out here are “racial IQ differences”, “you and other egalitarians” and “one point someone brought up that I simply couldn’t respond to”. The first phrase is suspicious because it associates race with IQ difference, when most individuals who reject race realism thinks that most observed differences are due to other factors besides race. Furthermore, “egalitarian” is a word that reminds a lot about “Darwinism”. It has its uses, but most of the time, it is a concept that those opposing it use to try and make the science-based position appear as if it was an ideology. Finally, The last phrase reeks of concern trolling.

This is not an iron-clad case and we should welcome actual concerns. Also, it is important to respond to the point brought up no matter if the person is a concern troll or a person who has a legitimate question.

The point he “simply could not respond to”

The argument he had trouble with was: Read more of this post

Ethnic Diversity, Psychosis and Cancer

diversity

There is a never-ending storm of dogmatic crackpots abusing the scientific literature for their own misguided ideological goals. The only thing thoughtful and rational skeptics can do is to provide some safe haven where science and facts triumphs over misrepresentation.

In this post, the focus will be on a Swedish anti-immigration website called Fria Tider (Free Times). I will not link to that website out of principle, but you can perform a Google search on the article titles and use Google translate if you want to read it in full. It is paleoconservative and their mission statement is to put a right-wing bias on all the allegedly left-wing biased news presented by the mainstream media. This is a clear example of the so called “hostile media effect”, where people with a strong bias on a certain issue feel that the media is itself biased against them.

Most of the stuff published at Fria Tider is exceptionally bad. It filled with obviously biased reporting, invalid generalizations and conspiracy theories. However, in the last few days, two astonishingly vacuous articles have been published on the website. They each attempt to summarize a scientific article published in the peer-review literature in order to prop up their anti-immigrant position. They believe the studies show specific negative consequences of ethnic diversity. They could not be more wrong. In fact, the studies show no such thing Read more of this post

Paranormal Believers and Pareidolia? Not So Fast…

ResearchBlogging.org

A recently published study (Riekki et. al. 2012) on the difference in susceptibility to pareidolia between paranormal believers and skeptics have has been making its way through various skeptical circles online. The essential message of the study is that that people who believe in the supernatural are more likely to see specific patterns (in this study, faces) where none exists.

I think the general conclusion is true; believers in the paranormal are more susceptible to pareidolia than skeptics. However, as good skeptics, we should keep two fundamental questions: (1) the study seems to support a position we already believe, so we should be especially careful not to fall prey to selective skepticism and confirmation bias and (2) what does the result of the paper really mean?

So what are the results of the study? I have extracted the effect sizes, sample sizes and the standard deviations from the paper, plotted the effect sizes and calculated parametric 95% confidence intervals. I did all of this in Microsoft Excel and it took me around 5 minutes. Here is the graph:

effect sizes and CI graph

As we can see, most of the differences are in the range of 2-6 percentage points with the confidence intervals being relatively broad. While statistically significant, these differences are probably not practically significant. The differences are quite small. This means that, there is most likely little or no practical difference between the susceptibility to pareidolia between the paranormal believers and skeptics / religious believers and non-religious believers investigated in any of the experiments in this study that I looked at. Read more of this post

Quantity and the Biological Context

graphs

The second half of a typical presentation of a mediocre study in biology goes something like this: a graph is presented showing the effect sizes and a lot of asterisks are added to denote statistical significance and the presenter talks about how some differences are “significant” whereas the others have a “tendency [towards significance]“. Then, in the result section, “significant” has morphed into clinical significance, where the differences are taken to be of real clinical value and all the difference that did not pass the significance test are either claimed to approaching clinical relevance or simply claimed to be equivalent.

The problem(s)

As pointed out in an earlier post on annoying statistical fallacies, statistical significance means that the probability of obtaining the data you got, or more extreme data, given that the null hypothesis is true is low. This is not the same as practical (clinical, medical, biological, sociological etc.) significance, which says that the differences are so large as to be of clinical value. Clearly, it is possible for it to be very unlikely to obtain a certain difference given the null hypothesis, but that this difference is so small as to be without clinical relevance. Read more of this post

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