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How To Teach a Healthy Dose of Skepticism?

c0d3h4x0r writes "It's no accident that 'whatcouldpossiblygowrong' is one of the most common tags applied by this community to stories about proposed ideas or laws. The ability to spot and predict faults is a big part of what makes a great engineer. It starts with having a healthy skepticism about the world, which leads to actual critical thinking. Many books and courses teach critical thinking skills, but what is the best way to encourage and teach someone to maintain a healthy dose of skepticism? Is it even a teachable skill, or is it just an innate part of the geek personality?"

29 of 880 comments (clear)

  1. Fail a lot? by NIckGorton · · Score: 5, Interesting

    The best way is personal experience. Have a strongly held belief effectively challenged and have an epic fail. Then don't do what most of humanity does and use cognitive dissonance defenses to justify why you are still incredibly smart despite the fact you were in this regard a complete tool.

    Generalize from your own experience and realize we are all flaming idiots but by using tools such as logic and the scientific method we can start to approach a modicum of cleverness. Then from that point on trust only 10% of what you hear and 50% of what you see, break a bunch of stuff while learning how not to break stuff as badly, and apply your skills to future problems.

    Oh, and I would recommend reading 'Why People Believe Weird Things' by Michael Shermer. He describes this in great detail and even describes one of his own epic failures (he was abducted by aliens - kinda hard to own up to for a skeptic.)

    1. Re:Fail a lot? by mimada · · Score: 5, Insightful

      Reminds me of a quote: Judgment comes from experience. Experience comes from poor judgment.

    2. Re:Fail a lot? by Anonymous Coward · · Score: 5, Funny

      "Fail alot and learn from your failures."

      Learn from that one! :)

    3. Re:Fail a lot? by Anonymous Coward · · Score: 5, Funny

      Surround yourself with failures and observe their demise.

      You could pull a few strings here and there as well.
      "Hey I saw a meatball in that light socket, take this fork and get it.
      I'll even give you half of it!"

    4. Re:Fail a lot? by Anonymous Coward · · Score: 5, Funny

      "Now, what's the difference between an invisible, incorporeal, floating dragon who spits heatless fire and no dragon at all?"

      Which is why I don't believe that invisible monsters could possibly make fresh tomatoes bad for you.

      Um... hang on a second, I need to go visit the little boys room.
    5. Re:Fail a lot? by HTH+NE1 · · Score: 5, Funny

      Everyone knows invisible dragons aren't really invisible. They only look that way.

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    6. Re:Fail a lot? by Anonymous Coward · · Score: 5, Funny

      If at first you don't succeed... Skydiving isn't for you.

    7. Re:Fail a lot? by timholman · · Score: 5, Interesting

      The best way is personal experience. Have a strongly held belief effectively challenged and have an epic fail. Then don't do what most of humanity does and use cognitive dissonance defenses to justify why you are still incredibly smart despite the fact you were in this regard a complete tool.

      James Randi has a very easy and entertaining experiment that he often uses on high school and college classes. He asks every student to provide their name and birthday, and in turn promises a personalized horoscope for each of them. A couple of days later, he shows up and passes out the horoscopes. Each student reads his/her horoscope, then Randi asks for a show of hands for the people who feel that their horoscope is very accurate. Typically an overwhelming majority of students raise their hands. Then Randi asks each student to switch horoscopes with the person next to them, and of course the horoscopes are all identical.

      The first step to skepticism is to show people how easily they can fool themselves by wishful thinking. Randi's experiment (or something similar) would be a great lesson for students.
    8. Re:Fail a lot? by Reverend528 · · Score: 5, Interesting

      "Now, what's the difference between an invisible, incorporeal, floating dragon who spits heatless fire and no dragon at all?"

      I don't know. What's the difference between a universe full of other races that we've never heard from and a universe inhabited solely by us.

      I'm a fan of Carl Sagan, but I do find it kind of amusing that he would easily reject one idea that there is no evidence for (God), but so willingly embrace another idea for which there is no evidence (intelligent extraterrestrial life).

    9. Re:Fail a lot? by themoodykid · · Score: 5, Insightful

      The fact that someone has put together instructions on how to fail tells us that people nowadays are more apt to think than to do. In general, I agree that thinking things through is good, but for trivial things, people should just act. What this has to do with skepticism, I don't know, but analysis paralysis just bugs me (I do it a lot) and is a big reason why big orgs can't get anything done.

    10. Re:Fail a lot? by cbelt3 · · Score: 5, Funny

      I prefer Heinlein's Law:
      "Stupidity is often punishable by death. Sentecse is carried out immediately. There is no appeal."

      That said- teach "Errors Course". Engineers of my generation heard a lot about errors, disasters, etc. caused by bad process, math, theory, materials. Who can forget the cheesy 8mm film of the Tacoma Narrows bridge failing ? Who can forget the Challenger exploding on takeoff, and the Columbia breaking up on re-entry ? And who isn't fascinated with the classic case of the "Unsinkable Titanic" sinking. On it's maiden voyage ?

      Learning from mistakes is, as others have noted, often the best teacher.

    11. Re:Fail a lot? by kanweg · · Score: 5, Insightful

      In the absence of any proof of a god and with 100% certainty that intelligent life developed once, it is only guessing that among the billions of galaxies it could have happened at least one more time. If I have to set a bet, I know where I'd put my money.

      Bert

    12. Re:Fail a lot? by smooth+wombat · · Score: 5, Insightful
      I'm a fan of Carl Sagan, but I do find it kind of amusing that he would easily reject one idea that there is no evidence for (God), but so willingly embrace another idea for which there is no evidence (intelligent extraterrestrial life).


      Why amusing? It's a perfectly logical, rational conclusion based on the available evidence. No one has ever provided any evidence or test to show that there is a supreme, omnipotent being watching over us. Nor has anyone ever provided any evidence to indicate how such a being could come into existence in the first place. The best anyone has ever offered is simply, "God/Vishnu/Chutulu/whatever has always existed." That is no evidence.

      On the other hand, we have absolute, concrete evidence for what it takes for life to form. Granted, we have only a single data point, our planet, but using that as our reference, we can now search the cosmos for other bodies which exhibit similar conditions and explore them for signs of life, intelligent or otherwise. We can of course also listen for signs of intelligent life through radio waves or other sources. In other words, we are looking for evidence of other beings because we know that at least in one case, our planet, such beings exist and if intelligent life exists on this ball of rock, then there is a probability that life exists somewhere else under similar conditions.

      This is where skepticism comes into play. If someone says "X product can do Y job better, and more cheaply, than a name brand product", they have to prove it. Until such time, people should remain skeptical of unsubstantiated claims. Why do you think the folks who produce supplements are so adamant about not having to prove the claims they make? They know that if subjected to scientific testing, their products would be shown not to do what the manufacturer claims.

      The same thing occurs with Sagan's (and others) stances on religion and why ID is not a scientific principle. Those concepts do not stand up to scientific rigor. If you want to believe that there is a God (or Gods), then by all means, go ahead. But don't equate a belief in something for which there is zero evidence to support said belief with an idea for which evidence already exists.

      --
      We will bankrupt ourselves in the vain search for absolute security. -- Dwight D. Eisenhower
  2. It just comes naturally with experience by oldspewey · · Score: 5, Interesting

    Skepticism is just an offshoot of experience and the wisdom that (hopefully) comes with experience. After witnessing and experiencing a few spectacular failures in this life, the natural and healthy outcome is to develop a skeptical streak.

    --
    If libertarians are so opposed to effective government, why don't they all move to Somalia?
  3. The Skeptical Environmentalist by mongoose(!no) · · Score: 5, Interesting

    Interesting book by Bjorn Lomborg, a Danish statistics professor. It has a lot of ancidotes about environmental policies and looking at the real impact of them. I don't agree with everything the author has to say, but it I thought it did a good job teaching critical thinking and encouraging people not to accept statistics at face value.

  4. Maybe it's just not human nature? by AmiMoJo · · Score: 5, Interesting

    In the UK we have this newspaper called the Daily Mail. Some people call it the Daily Hate Mail, because that's basically how it sells - it makes the reader angry. Every story is blatantly biased, designed to make your blood boil. There is always someone doing something stupid, someone to blame for every problem in the world. It's really obvious that it's actually a load of rubbish, but people seem to just have a natural tendency to like that sort of thing.

    Herman Gering admitted that the Nazi party used basically the same trick. The argument that you are being attacked, that other people are the cause of all your problems seems to be very compelling, perhaps because evolution makes the world competitive by nature and because if it's someone else's fault, it's not yours.

    A lot of men in particular seem to have a hard time admitting they are wrong too. Even if you point out how stupid their beliefs are, people have a hard time accepting it. So, when ideas come along that are even quite blatantly stupid people tend to latch on to them if they support their existing point of view.

    I think the only way to counter it is to teach philosophy and rational thinking from an early age. People seem to literally not know how to think, how to form a logical argument or dissect one in a rational manner.

    --
    const int one = 65536; (Silvermoon, Texture.cs)
    SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  5. It's a natural biproduct of critical thinking by Torinaga-Sama · · Score: 5, Interesting

    True skeptics aren't taught, they are usually forged through their own mistakes and misjudgments. In education it would behoove us to encourage mistake making as a learning tool instead of the current academic paradigm of grades and rankings.

    Of course I am a graduate of The Evergreen State College which has no grade system so apply salt liberally.

    --
    (/local/home/curiosity)-#who -u|grep thecat|cut -c 44-49|xargs kill -9
  6. Read books on it by AdamHaun · · Score: 5, Interesting

    I don't think geeks are much more skeptical than other groups of people. Everyone thinks groupthink and bias don't apply to them, but the reality is a lot more subtle. A good book I've found for learning about innate human biases is How We Know What Isn't So by Thomas Gilovich. It's filled with examples of how pattern detection and reasoning are skewed by the same heuristics that make our brains so effective in the first place.

    --
    Visit the
  7. Pseudo-skeptics vs. skeptics by Cutie+Pi · · Score: 5, Insightful

    In my experience there are two forms of skepticism-- true skepticism, which is healthy and sadly lacking in most people, and what I call "pseudo-skepticism" which is in great abundance. Pseudo-skepticism goes right along with pseudo-science and as is often used as a foundation for a belief system. Example: the 9/11 conspiracy theorists are rabidly skeptical of anything presented by the government or mainstream media (which is good, to a degree), but are completely accepting of the most crackpot theories imaginable. (The more crazy the idea, the better IMHO). They do this while covering their ears and singing LA-LA-LA anytime any one tries to debunk their theories with science or counter-evidence. Both sides of the global warming debate contain pseudo-skeptics as well, and unfortunately, they are the ones making the most noise.

    A true skeptic is skeptical of both points of view, and does the critical thinking necessary to form his/her own opinion. This is harder to teach since it comes from experience, which is harder to come by in this sheltered world of ours.

  8. It's not about teaching it. by ScentCone · · Score: 5, Insightful

    It's not about teaching skepticism and critical thinking. It's about not squashing those natural talents by teaching kids about the empty power of magical thinking, house-of-cards hollow self esteem disconnected from actual achievement, and the endless wallowing in platitudes about "having faith" and "just believe, and you can do anything!" etc. The cultural institutions that rely on such stuff are always at odds with critical thinking. Kids are natural scientists - they understand the need to test causality, and are always curious. It's a shame that so many people completely misunderstand the nature of ethics, and seem to think that mysticism (the enemy of critical thinking) is required in order to derive a sound moral framework.

    Parents are too quick to pass the baton to religion, new-age hokum, or just feel-good Oprah-ness in order to make their kids feel good about the world. They just want things to be easy, and don't have the personal fortitude to usher their kids through the slightly challenging phase of learning to apply their natural reasoning skills to topics that are somewhat less immediately tangible than what happens when you touch something hot. Issues like "what happens when one state taxes high tech entrepeneurs more than the the state next door" or "what happens when you let a gene pool get too shallow" or "what happens when you use GOTO statements in your code because it lets you get to lunch earlier that day" aren't any different than "what happens when you dump a hot oatmeal bowl in your lap," but require a little more discipline to digest.

    The platform for rational thought is already there. You have to kill it, though, or slowly suffocate it throughout child development, in order to make it something that it feels like work to wake it back up later. Just keep it alive in the first place, and we wouldn't have such a mixed bag cultural messes to deal with. We wouldn't be seeing the strange, sad dance of a politician twisting and turning while explaining why he's suddenly between churches while running for president... since he wouldn't have been glued to a crazy church in the first place. Think how much less noise and distraction we'd have without all that nonsense.

    --
    Don't disappoint your bird dog. Go to the range.
  9. Here be Dragons - video on critical thinking by somegeekynick · · Score: 5, Informative

    This was posted at the BadAstronomy.com blog a couple of days ago.

    [Sceptic] Brian Dunning has put together a video on how to think critically. Itâ(TM)s called Here Be Dragons, and itâ(TM)s a pretty good primer into how to think. Itâ(TM)s about 40 minutes long, and free to use (with some caveats; see the site). I think this would do well in a classroom. Any teachers out there? I know itâ(TM)s too late for most school sessions, but you can download the movie (and a high-res version too) and keep it handy for the next year. http://www.badastronomy.com/bablog/2008/06/11/here-be-dragons/

  10. As a person in education... by eepok · · Score: 5, Insightful

    My advice is to lie. A lot. Yes, I'm serious.

    The only way to teach others to be skeptical is to give reasons for skepticism. With middle school students (experience teaching algebra/pre-algebra), I would start off easy:

    Me: What's the square root of ?
    Students: *Silence*
    Me: Thought so. The answer is "flower".
    Students: *laughter*
    Me: What? Something wrong?
    Student: Ya, "flower" is not a number.
    Me: And?
    Student: A square root needs to be a number.
    Me: Does it?
    Student: YA! Duhhh!
    Me: Prove it. Show me how multiplying two flowers doesn't make .

    It's humorous, but I threw silly things like that in all the time. Answers the students knew couldn't be right. That gave them the courage to call me out when they thought I was wrong. I then required more of them:

    Me: is the correct answer to Students: How do you know?
    Me: I just know. I'm the teacher.
    Students: Ya, but you lie sometimes.
    Me: I do. So what do you do when you think I'm lying?
    Student: We show you why we think you're lying. Me: So show me.
    Student: *walks up to the board and does the math*

    In this situation, it doesn't matter whether or not the student is right in her/his distrust, but that s/he was willing to check my work.

    This is a tactic I use to teach and ingrain skepticism in every class I've ever taught.

  11. Since you brought up religion ... by trolltalk.com · · Score: 5, Insightful

    I posted in this thread before it dissolved into a religious flamewar and all I got was this lousy T-shirt.

    Since you brought up religion ... I saw a quote in todays' paper asking about whether people believe in bad luck on Friday the 13th (Today is Friday the 13th, btw). One wman said "Oh no, I have God watching over me, I don't have to worry. I don't believe in superstitions."

    My irony meter pegged. Of course, critical thinking and logic are anathema to anyone who believes in god.

    1. Re:Since you brought up religion ... by SanityInAnarchy · · Score: 5, Insightful

      Among other things, I observe some people dying for others when they don't have to (altruism).... I observe some real sacrificial love. Altruism may not be good for survival of the individual, but it is good for survival of the species. And Darwinism works at pretty much all levels -- if there were two groups of humanoids early on, and one was altruistic, while another wasn't, the altruistic group would've had a better chance of survival.

      I observe some amazing changes of heart in people I interact with that would not be expected or predicted. I observe some insanity, also. For all we know, that's what it was -- a random fluke of insanity that took them in a good direction.

      Or maybe it was building for some time now, and they only just now admitted to it.

      I observe people like Martin Luther King, who believed in God and also achieved some real greatness by following where he thought God was leading. And I observe people like Charles Manson, who thought he was following where God was leading, too. Delusions don't necessarily have to have bad results -- and, conversely, just because something has a good result does not make it real.

      This in fact is a fallacy; here's why. By its very nature the supernatural is "super" natural. If it were measurable, repeatable, therified and falsifiable, it would cease to be *super*natural and merely be a part of nature. I highly recommend reading David Hume -- even just his Wikipedia page. A favorite quote of mine: "When anyone tells me, that he saw a dead man restored to life, I immediately consider with myself, whether it be more probable, that this person should either deceive or be deceived, or that the fact, which he relates, should really have happened."

      It's part of a larger argument that the world is, essentially, natural, and not supernatural. Having never directly experienced anything supernatural myself, I have no reason to assume that the supernatural exists -- and, in fact, it seems much more likely that any record I have of the supernatural (including, nay, especially the Bible) is faulty than to assume that there is something so beyond the physical laws that we could never hope to explain it.
      --
      Don't thank God, thank a doctor!
    2. Re:Since you brought up religion ... by mdf356 · · Score: 5, Insightful

      If the supernatural isn't any part of nature, how does the supernatural affect the natural world?

      By analogy, let me suggest one way.

      Remember Flatland? To a two-dimensional creature, a three-dimensional creature can do some amazing things. It doesn't know how and can't really conceive of it, but they were nevertheless possible.

      Realize this is an analogy only; I can't claim to know how God affects the world, though I have some theories. But they're not *scientific* theories, they're really more like interesting philosophy exercises (how many angels can dance on the head of a pin; if a tree falls in the woods and no one hears it did it make a sound).

      Choose one, then we can tear that apart.

      You are very convinced that you're right, clearly. I don't need you to believe in my god or any other god. But you don't seem like you'll be happy until you prove me (or others who believe as I do) wrong.

      BTW: GodDidIt, is not an answer to the question "why" - it's still wishful thinking.

      If you don't believe in God then of course God can't answer the why. In that case you're left with *no* answer to the why, which is fine if you like it. But thousands of years of philosophers tells me that some people at least want to speculate on the why.

      --
      Terrorist, bomb, al Qaeda, nuclear, yellowcake, kill, assassinate. Carnivore is dead... long live Echelon.
    3. Re:Since you brought up religion ... by MindlessAutomata · · Score: 5, Insightful

      No. To have done the kind of work that earns a Nobel takes a lot of time and effort over many years. That kind of time spend on the science is incompatible with spending time with a family, because there's only 24 hours in the day for everyone.

      And what does that have to do with religion? You snuck that little jab in there for a reason, why not follow through with it? Not only are you probably wrong (a lot of work over the years doesn't mean Nobel prize winning scientists don't spend time with their families...) but your little tangent on Nobel prize winning scientists not "having time" for... god and family is out of place and I wonder what your agenda really is.


      You are clearly being not only argumentative, but dismissive (fantasy, magic, ghosts & goblins, and other unsubstantiated nonsense). Did I accidentally hit a sore spot of yours? Because for all that you (well, really the slashdot crowd in general) want to claim that you're rational, you don't argue very rationally sometimes about religion.


      No, I'm very rational towards religion. I know you probably have ants in your pants being told your belief in a god is no more justified or special than a belief in unicorns or magical powers, but that's the way it goes when you believe in unsubstantiated things that have as much evidence going for them as fantasy creations.

      Actually, we're not. I was specifically implying the religious folk who don't understand evolution. I do understand it, and I accept it as the best scientific explanation for the diversity of life that we see. If the state of Texas wants to try to "teach the controversy" or whatever mumbo-jumbo phrase the creationists are using lately, and someone else doesn't get to it first, my wife will sue their ass to keep it off the curriculum.


      Good, but that doesn't change the fact that you also rely on non-scientific explanations and statements about the world, being god and, judging by what you say later, miracles and probably a host of other stuff. If you want to live in reality it's best for all of us that you keep your head there.

      Ah, *probably* isn't there! You at least admit it's a possibility? That's some real progress!

      OF COURSE it's possible. You think you win points for believing in something that's possible? Your lack of knowledge of philosophy shines here, because probably anything can be possible as human understanding is not and cannot be 100%.

      This is exactly why god is in the same realm as big foot, unicorns, magic, the ether, the river Styx, and so on. These are all possible, sure you have to bend our current understanding of the world by adding in new statements and new assumptions to make them true (and thus new questions are raised, but strangely proponents of bullshit never seem intent on answering them honestly) but that doesn't stop people from thinking that because it's possible, it justifies belief in such a thing. Far from that fact.


      I can't prove God exists to you or even to myself. You can't prove she doesn't. It's not really the same, but IIRC it's pretty unlikely we'll ever know what was on the far side of the Big Bang, either. That doesn't mean physicists haven't advanced hypotheses, and I'll wager some of them even *believe* that one or another of these hypotheses must be the right one... even without proof.


      I never said "prove", it's a highly misleading word especially among the layman who has no understanding of reason and epistemology and thinks things can be "proven 100%" etc etc.

      Regardless of what proof means, evidence is what is important. We have evidence that we are a single planet in the solar system orbiting a star with many other stars out there. Explanations that stars are holes in the sky don't fly anymore and for good reason. Is it possible, through some convoluted explanation, that they are merely holes in the firmament...? Of course. Anyone who thinks that is full of nonsense, however.

      Scientists who believe without stro

  12. Re:And when are we being too critical? by luder · · Score: 5, Funny

    As child, I could see that the continents of North and South America could plausibly fit up to Africa, yet my science teacher dismissed the idea that they were once joined. As we all now know, they were, in fact, once joined. Wow, that must have been ages ago. How old are you?
  13. I can prove that wrong (logically, of course) by Crazy+Taco · · Score: 5, Insightful

    Of course, critical thinking and logic are anathema to anyone who believes in god.

    Given 1: I believe in God.
    Given 2: I am an excellent computer engineer, with dual degrees in computer engineering and computer science.
    Given 3: Earning dual degrees in computer engineering and computer science and working as a computer engineer require strong critical thinking and logical skills. They also require having taken classes in logic and critical thinking.

    Step 1: Earning computer science and computer engineering degrees and working in the computer engineering field require logical and critical thinking skills (Given 3), and I work in this field and have those degrees (Given 2). Therefore, it follows that I have logical and critical thinking skills.

    Step 2: I have logical and critical thinking skills (Step 1), and I believe in God (Given 1). Therefore, there exist some people who believe in God and have critical thinking and logical skills.

    Conclusion: I have disproved your statement that "critical thinking and logic are anathema to anyone who believes in god" by counterexample. QED.

    --
    Beware of bugs in the above code; I have only proved it correct, not tried it.
    1. Re:I can prove that wrong (logically, of course) by uniquename72 · · Score: 5, Funny

      The best pro-God post in the history of /.
      Thank you!!

      -an atheist