- Tell/show them why they're wrong.
- Keep your mouth shut.
- Say or do something to show loyalty to the idea even though you know it's BS.
Saturday, December 15, 2012
Problems of Implementing Rationality: Not Respecting Superstitions
In my last post I mentioned that we might see a guest appearance from Mike of The Lucky Atheist, so without further ado, here it is. He expands on the ideas presented here in this post on his own blog.
Thanks to Tim for letting me guest post. Here I'm posting about a particular problem of actually implementing rationality in your life. If this particular thought has crossed your mind before, I discuss a few others at my own blog, The Lucky Atheist.
Atheism is one outcome of applying more rational thinking to everything in our lives. But humans are not pure rational creatures, and even though some of us see the practical, real benefits of applying good rationality habits to our own thinking, and trying to help others see those same benefits, there are coordination problems. We're not lone hunter-gatherers in the savannah, problem-solving our way to evading big cats or treating infections. Quite the contrary, the vast majority of your happiness and material well-being depends on other human beings, many of whom are irrational as all get-out! So the problem is how does an erstwhile rationalist optimize outcomes for her or himself, without being out of sync with the irrational human beings around them? (I call optimizing for the near-term for purposes of coordinating with irrational people "sub-rationality".)
Maybe the best example is how to handle particular superstitions. What if people that you depend on for a paycheck (or something) believe, or claim to believe, in God, or fan death, or the evils of vaccinations? What do you do?
One problem is that if you do #1, and the superstition involves bad fortune, and something does happen to you, you know that superstitious people will all point to the superstition. "He walked under a ladder and got really sick that week. Well of course!" More generally though, it occurs in situations like these: you're hiking, and you knew damn well doesn't matter which trail you take, or you're working on some project and you know it doesn't matter which tool you use, which way you cook something, etc. But someone who thought s/he knew better (boss, friend, teacher, etc.) insisted that one of the two ways was superior. And you thought to yourself, "I have equal chances of success at this task with either method. And if I choose the method that the other person claims is inferior, and I fail, I will never ever hear the end of it. Since it doesn't matter, I'll just choose the method they prefer and be done with it." Rational in the near-term, but you just reinforced someone else's irrational belief about the task at hand.
Another point here is that of the three courses of action in the face of others' collective irrational beliefs, it seems that many or most of the #2's and 3's, i.e. people who don't object or even appear to go along with Superstition X, actually don't endorse it with their behavior, and in fact this often appears to be exactly the case. Do supposedly creationist Christians expect their insurance companies to give them a discount because more people are praying for them? Do they refuse to go to doctors trained in evolution? Do they refuse to invest their retirement money with mutual funds that buy shares of oil companies that operate based on secular old-Earth assumptions? (No doubt many of them do think they believe what they say they believe, but I'm sure there are plenty professing creationists who know it's nonsense and just like the benefits afforded by their church membership.)
The problem is that while you're optimizing for yourself in the near-term – and you really are – you're reinforcing the nonsense. Someone else who sees you mouthing the superstition in question thinks to him or herself, "Well, I better go along with it, because she just did too – and who am I to say it's not actually true?" Case in point: just last week I mentioned the difficulty with treating a patient who was ardently pro-homeopathy. The nurse sternly told me that so was she. (This, at UCSD!!!) Do you think I took this opportunity to lecture her on her irrationality? No. I'm a medical student, so I'm the lowest in the hierarchy anywhere I go. Not only would my #1 have not been received, I would have decreased my own utility in the process. So I did #2. Justification for my sub-rationality? So I can do a #1 when I'm an attending physician.
Wednesday, November 28, 2012
San Diego New Atheists & Agnostics Meetups
Over the past few weeks I've been to a couple of events hosted by the Meetup.com group San Diego New Atheists and Agnostics. One was earlier this evening: an informal five-on-five soccer match for which I was tragically unprepared. My lack of endurance running ability aside, though, I had a great time.
Nonbelievers of all stripes showed up, but what struck me about the meetup was how little about nonbelief it was. We had a short chat, warmed up a bit, and got right down to playing. In other contexts it might have been nice to talk at length about our common views on religion and theism. But in a way it was refreshing to see us come together, get some exercise and have some fun without having to frame it in terms of belief or lack thereof.
You can read a summary of the other event, a presentation by Secular Coalition for America's executive director Edwina Rogers, in my guest post over at The Lucky Atheist. I've written a bit about this blog before, but to summarize, Mike Caton runs the only other active San Diego-based atheist/skeptic blog that I'm aware of, and he puts out good stuff. Hopefully we'll see a guest post from Mike over here at some point in the near future.
Nonbelievers of all stripes showed up, but what struck me about the meetup was how little about nonbelief it was. We had a short chat, warmed up a bit, and got right down to playing. In other contexts it might have been nice to talk at length about our common views on religion and theism. But in a way it was refreshing to see us come together, get some exercise and have some fun without having to frame it in terms of belief or lack thereof.
You can read a summary of the other event, a presentation by Secular Coalition for America's executive director Edwina Rogers, in my guest post over at The Lucky Atheist. I've written a bit about this blog before, but to summarize, Mike Caton runs the only other active San Diego-based atheist/skeptic blog that I'm aware of, and he puts out good stuff. Hopefully we'll see a guest post from Mike over here at some point in the near future.
Tuesday, October 30, 2012
Electoral Prediction and Cognitive Bias
Over the past couple of weeks, a startling number of pundits and commentators have been relentlessly attacking political statistician Nate Silver and his blog FiveThirtyEight. Why? Because his electoral prediction model, which uses a mix of national polls, state polls, demographic information and economic data, calculates that Obama's chances of winning the election are slightly better than the convention wisdom suggests. At present, they're hovering at a little below 75 percent.
Nate has a great track record when it comes to predictions: In 2008, he called all 35 Senate races right, as well as 49 of 50 states for president. In 2010, he correctly called 34 of 37 Senate races and 36 of 37 governors' races. When he was wrong, the outcome was usually decided by a razor-thin margin. And his reasoning for this year's prediction is simple: Obama holds small leads in enough crucial swing states (e.g. Ohio, Wisconsin, Nevada, Iowa) to get him to the needed 270 electoral votes.
But the critics dismiss all that, declaring in a textbook case of 20–20 hindsight that those other predictions were a cakewalk, and this time is different. They whine that Nate's biased because he's rooting for Obama (which never shows in his incredibly calm and even-handed commentary). They complain that his poll weighting system is subjective and introduces bias (even though it's actually based on objective measurements of poll recency, methodology and track record). And when all else fails, they mock him as puny and effeminate.
It would be one thing if Nate was alone in making the forecast that he does... but he's not. The various prediction markets, which despite their flaws are usually pretty accurate, tend to mirror his probability estimate very closely. And it turns out that his model is actually quite generous to Romney compared to other competing models of the same type.
So why have Nate's projections been subjected to such merciless criticism? For several reasons, none of which have anything to do with the merits of his model.
One is that the media has an incentive to portray elections as close—in this case, a virtual dead heat—so that people get excited and tune in for more coverage. So when someone comes along claiming that one candidate actually has a small but substantial lead, the public and the less-savvy pundits are naturally skeptical.
Another reason comes down to the fact that people do a very poor job of grasping probabilities. Commentators hear Nate estimate a 75% chance of Obama winning and think, "Wow, he must be really sure of himself." That's certainly the impression Joe Scarborough gave when he insisted that Obama's chances were at 50.1%. But Nate's prediction isn't all that dramatic. What many fail to understand is that if you assign Event X a 75% probability of occurring, it means you expect it to not happen 25% of the time. In fact, if such events occur more often than three out of four times in the long run, you've made a very real error.
The third and most glaring reason is a combination of wishful thinking and confirmation bias. Conservatives want very badly for Romney to win this election (or more to the point, for Obama to lose), so some will do anything to interpret the data as favorably as possible. Their most common defense is an allegation that the pollsters are (intentionally or not) oversampling Democrats—a claim based on the faulty assumption that party identification is static, rather than fluid and subject to change in response to current events. Another is to hold polls favoring Obama to a higher methodological standard, while clinging uncritically to those favoring Romney, such as the overly volatile Gallup tracking poll. Still another is to ignore polls altogether and point to less direct indicators, like an alleged closing of the gap between male and female voters or the candidates' favorability ratings. Yet one more is to claim, baselessly, that undecided voters break dramatically against the incumbent. Anything to keep the dream alive.
Finally, the more cynical conservative pundits may be consciously biasing their predictions. They have an incentive to tell their audience what they want to hear—Republicans who want to be reassured will look to them for certainty. Dick Morris, for instance, has such a catastrophic track record of predicting GOP victories that it's hard to imagine he's anything but an opportunist looking to get more attention and sell more books.
Now, before any staunch liberals out there get too cocky about the follies of their counterparts across the aisle, I should point out that this mindset is by no means limited to one party or ideology. In 2004, Democrats were guilty of groundlessly criticizing poll oversampling just as Republicans are today. And a quick perusal of the comments on Nate's blog posts will reveal many left-leaning readers expressing far more confidence in Obama's chances than is warranted by the data. Many of his acolytes also seem to follow the blog just to pacify their anxieties rather than to follow the data wherever it leads. So no matter what your politics, beware of how your biases influence your views and expectations.
Now I leave you with one final prediction. If Romney wins, you can bet that all the critics will be crowing with triumph and declaring the demise of FiveThirtyEight. But if Nate turns out to be right, you can bet those same critics will brush it off as a fluke, blaming voter fraud or Hurricane Sandy or anything else they can think of to resolve their cognitive dissonance, in much the same way that a cult will rationalize its failed doomsday predictions.
So why have Nate's projections been subjected to such merciless criticism? For several reasons, none of which have anything to do with the merits of his model.
One is that the media has an incentive to portray elections as close—in this case, a virtual dead heat—so that people get excited and tune in for more coverage. So when someone comes along claiming that one candidate actually has a small but substantial lead, the public and the less-savvy pundits are naturally skeptical.
Another reason comes down to the fact that people do a very poor job of grasping probabilities. Commentators hear Nate estimate a 75% chance of Obama winning and think, "Wow, he must be really sure of himself." That's certainly the impression Joe Scarborough gave when he insisted that Obama's chances were at 50.1%. But Nate's prediction isn't all that dramatic. What many fail to understand is that if you assign Event X a 75% probability of occurring, it means you expect it to not happen 25% of the time. In fact, if such events occur more often than three out of four times in the long run, you've made a very real error.
The third and most glaring reason is a combination of wishful thinking and confirmation bias. Conservatives want very badly for Romney to win this election (or more to the point, for Obama to lose), so some will do anything to interpret the data as favorably as possible. Their most common defense is an allegation that the pollsters are (intentionally or not) oversampling Democrats—a claim based on the faulty assumption that party identification is static, rather than fluid and subject to change in response to current events. Another is to hold polls favoring Obama to a higher methodological standard, while clinging uncritically to those favoring Romney, such as the overly volatile Gallup tracking poll. Still another is to ignore polls altogether and point to less direct indicators, like an alleged closing of the gap between male and female voters or the candidates' favorability ratings. Yet one more is to claim, baselessly, that undecided voters break dramatically against the incumbent. Anything to keep the dream alive.
![]() |
| Meet the man who thought Bush's response to Katrina would be his crowning achievement. |
Now, before any staunch liberals out there get too cocky about the follies of their counterparts across the aisle, I should point out that this mindset is by no means limited to one party or ideology. In 2004, Democrats were guilty of groundlessly criticizing poll oversampling just as Republicans are today. And a quick perusal of the comments on Nate's blog posts will reveal many left-leaning readers expressing far more confidence in Obama's chances than is warranted by the data. Many of his acolytes also seem to follow the blog just to pacify their anxieties rather than to follow the data wherever it leads. So no matter what your politics, beware of how your biases influence your views and expectations.
Now I leave you with one final prediction. If Romney wins, you can bet that all the critics will be crowing with triumph and declaring the demise of FiveThirtyEight. But if Nate turns out to be right, you can bet those same critics will brush it off as a fluke, blaming voter fraud or Hurricane Sandy or anything else they can think of to resolve their cognitive dissonance, in much the same way that a cult will rationalize its failed doomsday predictions.
Thursday, October 18, 2012
While We're Young
I was going through all the ancient stuff I had buried at the bottom of my desk drawers and came across this:
It's a letter from my former church congratulating me on becoming a Christian, from way back in July of '96. I was seven at the time.
Seems so innocuous, doesn't it? They were so glad to welcome me into the fold. They assured me I had made the right choice, a vital choice, renewing the sense of relief I had from avoiding damnation. They invited me to the Clubhouse—the name has that enticing air of exclusiveness about it. Actually, they didn't invite me: the subtle use of "when" made it a foregone conclusion that I would attend. Tell your parents what time you want to come, they suggested. Have fun, watch puppet shows, sing songs. And oh, by the way, bring your friends!
It really was fun. They put on an engaging production in the church auditorium, surprisingly polished for a kid's program. There were engrossing quiz games, props and puppets flying everywhere, funny voiceovers over the loudspeaker—more like watching an interactive play than attending a sermon. The stuff for older kids was considerably more dry and dull, but they really knew how to reel in the six-to-ten crowd. They understood the importance of grabbing our attention from a young age.
I'm probably making all this sound too sinister. I can only assume that these were genuinely nice people with pure intentions. The goal was not to snare hapless children in some nefarious trap. But when good people are misguided, when they're incredibly motivated, when they have years and decades and centuries to hone their sales pitch, when their target audience still believes in the tooth fairy... well, it's not exactly a fair fight.
It's a letter from my former church congratulating me on becoming a Christian, from way back in July of '96. I was seven at the time.
Seems so innocuous, doesn't it? They were so glad to welcome me into the fold. They assured me I had made the right choice, a vital choice, renewing the sense of relief I had from avoiding damnation. They invited me to the Clubhouse—the name has that enticing air of exclusiveness about it. Actually, they didn't invite me: the subtle use of "when" made it a foregone conclusion that I would attend. Tell your parents what time you want to come, they suggested. Have fun, watch puppet shows, sing songs. And oh, by the way, bring your friends!
It really was fun. They put on an engaging production in the church auditorium, surprisingly polished for a kid's program. There were engrossing quiz games, props and puppets flying everywhere, funny voiceovers over the loudspeaker—more like watching an interactive play than attending a sermon. The stuff for older kids was considerably more dry and dull, but they really knew how to reel in the six-to-ten crowd. They understood the importance of grabbing our attention from a young age.
I'm probably making all this sound too sinister. I can only assume that these were genuinely nice people with pure intentions. The goal was not to snare hapless children in some nefarious trap. But when good people are misguided, when they're incredibly motivated, when they have years and decades and centuries to hone their sales pitch, when their target audience still believes in the tooth fairy... well, it's not exactly a fair fight.
Tuesday, August 28, 2012
Political Sites for Skeptics, Part 2
I forgot a few key resources in my previous post about neutral and/or skeptical political sites. So, without further ado...
Two of these sites are On The Issues and ProCon.org. These resources list the political stances of politicians and commentators in a simple and straightforward way. To do so, they use their legislative voting record as well as direct quotations from speeches and books. Here are On The Issues' pages for Obama, Biden, Romney, his newly-selected VP candidate Paul Ryan, and the main third-party candidate, libertarian Gary Johnson. ProCon compares six presidential candidates' answers to 61 questions in this handy chart. (They also have some good, even-handed information on other controversial issues at their main page.)
Then there are the "transparency" sources. Most people lump politicians in with the likes of lawyers and used car salesmen in terms of honesty and integrity, but it's often hard to know exactly where their loyalties lie. OpenSecrets goes a long way toward solving that problem by posting detailed information about what special interest groups are donating to whom—for example, SOPA author Lamar Smith's media-based donors. Their side-by-side comparison of the two presidential candidates is also quite nice. GovTrack is useful for keeping track of the voting records of various legislators—Paul Ryan's, for instance. MapLight is another potentially useful site that combines the latter two.
Finally—and I have no idea how I could forget this one—there's Snopes. Sure, they tackle every subject under the sun, but they have a specific page dedicated to politics, and even separate subsections for Obama and Romney. There are a ton of rumors about Obama that have bubbled up over the past five or so years, and the vast majority of the ones tackled here are exposed for the sensationalist nonsense they are. Barbara and David Mikkelson do a great job researching and running the site, and their work in these areas mainly serve to highlight how immensely unreliable political chain emails tend to be.
Politics today is so vicious and partisan that finding reliable, neutral information is nearly impossible. It's hard for me to form opinions when so many sources present their information through the lens of their personal worldviews. With the help of the sites I've covered here, though, I feel like I have a fighting chance of distinguishing vested narrative from objective truth.
Tuesday, July 24, 2012
But It's Not Hurting Anyone!
What we have here in the title is perhaps the most common objection skeptics receive when we criticize an scientifically unproven "alternative" treatment. Those who utter this treacherous phrase usually do so with the best of intentions. The only problem is, they're almost always wrong.
The harm caused by snake oil treatments isn't necessarily obvious in every case. Disasters happen now and again, but usually the effects are very subtle. Here are some reasons, in general, why buying treatments of unproven efficacy would be a bad thing.
- Ineffective treatments fail to prevent suffering. While patients may still benefit from the placebo effect, that effect is also present for treatments that really work. Snake oil wastes precious time that could have been spent actually treating the patient's ailments.
- The chance of harmful side effects on the user. Acupuncture, for example, can expose people to serious infections, while detoxing can cause severe malnutrition. Naturally, scientific treatments can have side effects as well, but those that are approved for public use are well documented, and their benefits have been conclusively shown to outweigh their risks.
- The chance of harmful side effects on the environment. For example, many remedies in Traditional Chinese Medicine are made from the body parts of rare animals like rhinoceros horns, tiger penises and bear bile. This can cause these animals to suffer unnecessarily, or to be hunted to endangerment and even extinction. This has far-reaching consequences not just for an individual species, but potentially for an entire ecosystem.
- Money is being wasted on companies who contribute nothing to society. Not only does this discourage the researchers and manufacturers from pursuing other more productive careers, but they will also use that money to market new brands of snake oil, perpetuating a cycle of medical ignorance.
- Conversely, that money isn't going to more rigorous companies. This is money that could have been used for new and even more effective treatments, advancing medical science to new heights. And when science-based researchers and manufacturers are deprived of much-needed funding, they're that slight amount more likely to go out of business altogether.
Again, the damage caused by the purchase of a single alternative supplement is usually very small. But just as the seemingly insignificant votes of individuals can decide the fate of entire nations, those purchases add up to create entire industries of harmful "alternative" treatments. Even something as seemingly innocuous as a Power Balance bracelet contributes to a culture of scientific illiteracy that we should be trying our utmost to break away from.
Tuesday, July 17, 2012
Political Sites for Skeptics
I'm not going to delve too far into political issues with this blog. But since skepticism is a big part of what I write about here, I thought I'd take a few minutes to present some of the online resources I would recommend for skeptics to use when following politics.
If verifying political claims is your goal, both PolitiFact and FactCheck are invaluable resources. I especially like PolitiFact for its quick Truth-O-Meter ratings. Both parties tend to champion the sites when it supports them or attack them as biased when it doesn't—in other words, politics as usual. I won't claim that these sources are "true neutral," as that's difficult if not impossible to come by, but if they have a secret plot to further one side over the other, they've done a great job hiding it. Unfortunately, the sites are far from comprehensive. Apparently thorough, balanced reporting actually takes some time and effort—who knew?
As far as political discussion forums go... well, there's a subreddit for everything these days. I generally steer clear of the hard-left sensationalism of r/politics, in favor of smaller and more thought-provoking places like r/2012elections, r/PoliticalDiscussion, r/ModeratePolitics and r/NeutralPolitics. The first is highly topical, while the second is an open space for talking about every political idea under the sun. Even if you're not a moderate, chances are you'll still enjoy the latter two, as the focus is on civil discussion instead of creating an echo chamber. I like to view these four in unison as a single multireddit.
Want predictions and polling numbers? RealClearPolitics does a decent job of compiling the national figures, but FiveThirtyEight is the best source for polling data and data-driven political analysis I've found. It's run by Nate Silver, a professional statistician with an amazing track record of correct election predictions—49 of 50 states in the 2008 elections, for example. His model for predicting the 2012 outcome pulls in (among other things) virtually every state poll in the country and even corrects for systemic biases (e.g. registered versus likely voters). And his daily blog posts probe the nuances of political science in a completely detached, non-partisan tone. If you want to know who's going to without all the wishful thinking and daily gossip, this is your place.
Finally, I'll end with a decidedly partisan source: RightWingWatch. While there are unquestionably plenty of fringe wingnuts on the left (and let me know if you know of any reputable sites that compile madness on that side of the aisle), I'm including this one mainly due to its exemplary coverage of the extreme religious right. There are people in relatively influential positions who say things which are absolutely bonkers, but would fly under everyone's radar if RWW didn't cover it. They'll have a sensationalized headline now and then, but on the whole their reporting is an accurate portrayal of just how radical the fundamentalist faction of politics can be.
Being a skeptic with regard to the supernatural is relatively straightforward—it's just a matter of waiting until some phenomenon with sufficient evidence comes along. With politics it's a lot harder. To take a proactive stance on positions that have real impacts on millions of people is no small task—especially when the few objective facts available, are massaged and twisted beyond recognition. It's such a vicious and insular culture that keeping up can be exhausting, but with the help of these resources, I can at least be confident that I'm not completely in the dark.
If verifying political claims is your goal, both PolitiFact and FactCheck are invaluable resources. I especially like PolitiFact for its quick Truth-O-Meter ratings. Both parties tend to champion the sites when it supports them or attack them as biased when it doesn't—in other words, politics as usual. I won't claim that these sources are "true neutral," as that's difficult if not impossible to come by, but if they have a secret plot to further one side over the other, they've done a great job hiding it. Unfortunately, the sites are far from comprehensive. Apparently thorough, balanced reporting actually takes some time and effort—who knew?
As far as political discussion forums go... well, there's a subreddit for everything these days. I generally steer clear of the hard-left sensationalism of r/politics, in favor of smaller and more thought-provoking places like r/2012elections, r/PoliticalDiscussion, r/ModeratePolitics and r/NeutralPolitics. The first is highly topical, while the second is an open space for talking about every political idea under the sun. Even if you're not a moderate, chances are you'll still enjoy the latter two, as the focus is on civil discussion instead of creating an echo chamber. I like to view these four in unison as a single multireddit.
Subscribe to:
Posts (Atom)










