Category Archives: Ad Hominem

Ad hominem tu quoque, Argument Analysis, Argument from Inconsistency, Argument Schemes, Fallacies and Other Problems

Fallacies for Biomedical Research

The Foundation for Biomedical Research, an advocacy and lobbying organization for biomedical industries has been dumbing down the public discourse around the use of animals in medical research with bill-boards in several cities. ABCNews has the story http://abcnews.go.com/Health/Drugs/animal-research-billboards-pit-cute-girl-lab-rat/story?id=13371007

(ABCNEWS)

Now, one might say that this does not make an argument and so cannot argue fallaciously. As their spokesperson (roughly) says in the article, they are just getting people to "ask the question" and "think about why doing animal research is important." And that might be fair enough, even if it seems, perhaps, a bit disingenuous. But, it seems to me, even if we grant this, doing so should lead us to see that they expect us to infer something from our answer to this question. 

Perhaps it's just:

C: Killing the rat to save the little girl would be a good thing.

But, it seems unlikely that they are merely interested in agreement to such a limited conclusion. Presumably the girl and the rat represent a general claim about the value of the lives of cute little girls and rats. And, as an advocacy group, which lobbies against further restrictions on the use of animals in biomedical research (such as considering rats "animals" under the Animal Welfare Act, I believe) and defends research that kills and causes animals to suffer for possible medical benefits, it seems likely that they want us to infer something further from this premise. Perhaps,

P1: It would be better to save the girl than the rat.

C: The use of animals in research generally is good.

But, if someone were to infer that broader claim, as I suspect, the FBR would like, they would seem to be reasoning fallaciously.

The argument might also be taken as an argument from inconsistency:

P1: You hold that the use of animals for research is morally problematic. (70% of Americans do according to FBR).

P2: You would save a girl's life rather than a rat's life.

C1: Your belief in P1 is false

or, C2: You do not have good reason to hold your belief in P1

or, C3: You are an unreliable judge of the moral issue.

This is a better argument, and takes the form of a subjunctive tu quoque, of the fallacious variety–which conclusion should be drawn is unclear, but all of them seem non sequiturs.

On our analysis of subjunctive tu quoque's, the question is whether

P3: Your judgment in P2 is more relevant for judging the moral issue than whatever grounds you have in P1.

If this premise is supplied the argument looks less logically awful (for C2 at least), but P3 is unlikely to be true, making the argument at best unsound. Further as I noted above, it seems likely that the FBR would like the viewer to draw C1, which does not follow from the premises even with P3 supplied.

There are other things to say about the logic of the implicit arguments here, and my charity is running out. One might think, at the least, that it is curious that some would want to defend scientific research with bad arguments, but perhaps that's just my out-dated enlightenment views of science surfacing.

Ad Hominem, Ad Hominem Abusive, Fallacies of weak induction, Good Arguments, Hasty Generalization

Ad hominems and drawing conclusions about character

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Ad hominem abusive fallacies are fallacies of relevance.  The basic scheme for the fallacy type is:

P1: S holds that p

P2: S has some vice, X

C1:  Therefore, p is false (or unacceptable).

With my informal logic classes, I have the regular joke: Just because Brenda is a heavy drinker, that doesn't mean that she doesn't know much about politics — She may be a heavy drinker because she knows politics!  That gets lots of laughs, believe me.  But now, consider an argument of a different form, but composed of similar propositions:

P3: p is demonstrably false (i.e., there is sufficient and easily accessible evidence that p is false)

P4: S holds that p, despite P3

C2: Therefore, S has some vice X (where X = vices from simple stupidity to willful ignorance to suffers from ideological thinking)

Importantly, the argument has very similar claims as the ad hominem abusive, but it is of a different form — we are reasoning to S's vice, not from it.  Now, it is clear that this second kind of argument can be made hastily (as there is a big difference between being wrong and being stupid — that's the Fallacy of No Reasonable Alternatives, a species of false dilemma), but it does seem right that P3 and P4 are relevant to C2.  This second form of argument is one either (a) addressed to some third party about S or (b) addressed directly to S in order to request that S reform how she performs in argument regarding p (and perhaps other issues).

With the theoretical apparatus assembled, let's look at Steve Chapman's column, "Why Birtherism is Here to Stay," over at TownHall.com. 

There has never been a shred of persuasive evidence that Obama was born anywhere but Hawaii. But thanks to rampant paranoia and widespread credulity, the myth of his foreign origins gained currency among many people who should know better.

What is Chapman's explanation for this phenomenon — people who believe things that they should know better to not?

A poll taken after the release of his birth certificate showed 18 percent of those who have seen it still aren't convinced.  Something about this president impels many people to accept anything that is said about him, as long as it's unfavorable. . . .   Birthers don't dislike Obama because they think he was born abroad. They think he was born abroad because they dislike him. People of this bent don't proceed from facts to a conclusion. They prefer to reach a conclusion and then scrounge for any facts — or "facts" — that support it.  For them, being told Obama is a natural-born American is like being told he's a loving father and a loyal friend. They won't buy it because it doesn't confirm what they want to be true.

The logician and pragmatist C.S. Peirce called these sorts of patterns of thought 'pseudoreasoning,' and it looks very much like a form of rationalizing.  And the key to the effectiveness of these strategies of thought is that the people making errors with them are not exposed to the consequences of being wrong.  If you pseudoreason your way to believing that you can fly, you pay the consequences.  But if you pseudoreason your way to believing that the President of the United States is a Muslim Marxist AntiChrist, you make lots of friends (and if you stop believing them, you lose those friends).

This is surprising only if you think of political views as a matter of logical reasoning. For many people, they really aren't. They're a way of indulging emotional impulses without suffering painful consequences. . . . [I]f thinking Obama is a foreigner brings you closer to people you like, you come out ahead. Birthers would rather be wrong than be divided from their allies. So the fiction that Obama was born in Kenya will endure, and many Americans will hold fast to a ridiculous article of faith that has been conclusively refuted.

The thing is that this does amount to calling Birthers credulous, ideological, and cognitively blind.  Chapman forgot one thing more for his piece: directing readers to the comments for this piece!

Ad hominem tu quoque, General discussion, Specious allegations of fallacy

Tax quoque

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Time to pay your federal taxes, so it's time for people to complain about how much we're taxed, or, alternatively, how little some people are taxed relative to their income, etc.  Now comes Gregg Easterbrook, whose work I do not know (and now I know why, if this is a measure of his intellect).  It is well known now that Barack Obama is for reductions in revenue expenditures–i.e., he's for increasing taxes (a phrase for which he was justly lampooned by Jon Stewart).  But, Easterbrook spies a problem:

President Barack Obama wants to increase taxes on the wealthy, and surely is correct that this must be part of any serious plan to control the national debt. Consider the case of a wealthy couple who made $1.7 million in 2010, yet paid only 26.2 percent in federal income taxes — though the top rate supposedly is 35 percent, and the president says that figure should rise to 39.6 percent. The well-off couple in question is Barack and Michelle Obama, whose tax returns, just released, show they paid substantially less than the president says others should pay.

If Obama is in earnest about wanting increased taxes on the wealthy, then he should send the United States Treasury $182,998. That’s the difference between his Form 1040 Line 60 (“This is your total tax”) and what he would have owed at the higher rate (plus limits on itemized deductions) he himself advocates.

So why doesn’t he tax himself more? The Form 1040, after all, only stipulates the minimum tax an American must pay. More is always welcome. Obama should write a check to the United States Treasury for $182,998.

Wealthy people who say the rich should pay higher taxes — Bill Gates and Warren Buffett have joined Obama in declaring this — are free to tax themselves. If you believe the top rate should rise to 39.6 percent (Obama) or 50 percent (Buffett), then calculate the difference and send a check for that amount to the Treasury. Of course no one individual doing this, even a billionaire, would have much impact on the deficit. But if rich people who say they believe in higher taxes were willing to practice what they preach, this would prove their sincerity, making legislation on the point more likely.

This argument is so dumb that Megan McArdle made it (can't remember where I read the refutation).  Normally, accusations of hypocrisy need to posit some actual or hypothetical (counterfactual) hypocrisy.

On Easterbrook's view, Obama is a hypocrite for not unilaterally taxing himself.  He's rich, he advocates higher taxes for the rich, ergo, ipso fatso.  But of course he's not a hypocrite, because he's advocating a tax policy he'll obey if given the chance.

As a practical matter, a bunch of rich people donating to the Treasury will likely delay tax increases on the wealthy–see, for instance, the free rider problem.

 

Link via Mother Jones via Atrios.

And, BTW, happy Charles Krauthammer Day!

Ad hominem tu quoque, Plain Bad Arguments, Straw Man

Let them eat cake*

2 Comments

I'm pretty sure you can count on James Taranto to criticize Obama for abolishing medicare.  So it's not surprising when Obama points out that market pressures–namely high prices–ought to encourage people to take a little personal responsibility; the government, on Taranto's view perhaps, is not here to "feel their pain."  Or so one would think.  But, sadly, no (link courtesy of Sadly, No!):

At a town-hall meeting yesterday in Fairless Hills, Pa., a man in the audience asked Obama about gasoline prices, which are currently in the range of $4 a gallon. According to the Associated Press, Obama responded "laughingly" and "needled" the questioner. The president's sarcasm comes through in the White House transcript:

I know some of these big guys, they're all still driving their big SUVs. You know, they got their big monster trucks and everything. You're one of them? Well, now, here's my point. If you're complaining about the price of gas and you're only getting eight miles a gallon–(laughter)–you may have a big family, but it's probably not that big. How many you have? Ten kids, you say? Ten kids? (Laughter.) Well, you definitely need a hybrid van then. (Laughter.) . . .

So, like I said, if you're getting eight miles a gallon you may want to think about a trade-in. You can get a great deal. I promise you, GM or Ford or Chrysler, they're going to be happy to give you a deal on something that gets you better gas mileage.

The transcript shows that Obama got lots of laughs. But presumably he was speaking to a friendly audience–to people who regard the burning of gasoline as sinful and who, at least in theory, are attracted to the idea of $8-a-gallon gasoline.

People like that, to paraphrase Pauline Kael, live in a rather special world. For most Americans (we Manhattan residents are a notable exception), driving is a day-to-day necessity, and high gas prices are a constant source of economic pain. Sure, if you're driving a guzzler, it might make sense to trade it in. But not everyone has the money lying around to buy a new car at the drop of a hat. And owners of dinky cars and hybrids still have to buy gasoline for them.

The government is not here to solve the problem of high prices, one might argue.  Indeed, when the price of health care gas is high, the market will sort it out–and responsible people will make responsible choices about finite, expensive, but necessary resources.  They can't expect the government to sort it out.  Or at least, they will recognize the limitations.

Anyway, it goes without saying that Taranto has completely misrepresented the tone of the President's comments.  Here is a passage from the opener:

The fact is, for a lot of folks, money was already tight before gas prices started climbing, especially for some families where the husband or the wife had been out of work or you’ve had to get by with fewer customers or hours on the job. Having high gas prices is just one more added burden.

But I want everybody to remember, every time gases go up, we see the same pattern. Washington gets all worked up, just like clockwork. Republicans and Democrats both start making a lot of speeches. Usually the Democrats blame the Republicans; the Republicans blame the Democrats. Everybody is going in front of the cameras and they’ve got some new three-point plan to promise two-dollar-a-gallon gas. And then nothing happens. And then gas prices go down, and then suddenly it’s not in the news anymore and everybody forgets about it until the next time gas prices go back up again.

That’s what was happening when I was running three years ago. You remember “Drill, baby, drill”? That was because the economy was overheated, gas prices were skyrocketing, and everybody made a lot of speeches but not much happened. And I said then that we can’t afford to continue this kind of being in shock when gas prices go up and then suddenly being in a trance when things go back down again. We’ve got to have a sustained energy policy that is consistent, that recognizes that there’s no magic formula to driving gas prices down; it’s a steady improvement in terms of how we use energy and where we get energy from — that’s what’s going to make a difference. That’s how we’re going to secure our energy future.

It's as if he does feel their pain.  You can read the rest at the link–the link Taranto does not provide.  Wondering why.  And of course, his answer to the question about fuel efficiency is nothing like Taranto alleges.

 *a later edit included this title (I forgot to put a title on the original post).  I searching for the quoted Obama passage, I found scores of right-wing criticism of it (no surprise, it was repeated without context).  Surprising, however, that one called it Obama's "let them eat caek moment."  Now I wonder, isn't that just want conservatives would have the government do for health care, etc.?  I mean, how can Obama be a heartless French royal, and a communist with false beliefs about the environment trying to get us to drive fuel-efficient cars?

 

Ad hominem tu quoque

Just what you’d expect part 872

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Our university now has an Objectivist club.  Like all clubs, the Objectivist club puts up fliers to advertise its meetings.  Walking up the stairs yesterday at school I spied their (I have to admit) well-designed and well-placed flier.  What made it so well placed, you see, was that it was right exactly at eye level in the middle of the wall of similar fliers.  On the second floor, the flier was tacked on top of–you cannot make this stuff up–a flier advertising a blood drive.  On the third floor, the flier was tacked on top of a flier advertising a course on homelessness offered in the Department of Social Work.

In another, somewhat related, matter, a former real world star (I'm also not making this up), and current GOP congressman from Wisconsin, Sean Duffy, complained at a town all meeting that he struggles to pay his bills on his 174,000 salary (you can support him here).  Video here.   According to TPM, the congressman also supports cutting public employees' salaries:

Duffy also said that he pays more in health care costs and retirement savings than he did when he was a district attorney before he ran for Congress. That said, Duffy said he'd support the idea of "public employees across the board" taking a compensation cut.

"Let's all join hands together and say 'I'll take a pay decrease, absolutely," Duffy said.

Yes.  Let us all join hands together.  The median income in Polk County is around 50,000.  Some sacrifices are more meaningful than others–wasn't there some Bible story about this?

Duffy, it appears, is not actually inconsistent.  He supports Governor Walker-style cuts for everyone.

Nonetheless, we still might run a tu quoque on him–a subjunctive one.  It might go something like this.  The cash-strapped Duffy might be less likely to see the wisdom in that if he were actually cash-strapped.  He's not, in other words, cash strapped in the relevant way.  He is cash strapped relative to his expenses on a robust salary; he is not cash-strapped relevant to having cash at all.

Ad Hominem, Ad Hominem Abusive, General discussion

How not to defend yourself (gnu atheist style!)

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For those of you who don't know, Rob Talisse and I have been posting about atheism and argumentative civility over at 3QuarksDaily.  First, here; the follow up here.  Our book, Reasonable Atheism is on the shelves now, too.   In the blog posts, we've been trying to untangle the ugliness about the charge of 'accommodationism' among the atheists. Well, that angers the gnus, because they keep thinking that people are wagging their fingers at them about tone.  And angry atheists don't like to be told to be nicer.  (And, by the way, nothing about what we'd written was about tone, anyway. So…)

We criticized PZ Myers, of pharyngula fame, for making an error we see a lot: holding a person in contempt for believing something you think is false.  The point is that there's a difference between being wrong and being stupid, and Myers makes the error all too often.  He posted a comment on our first entry (Feb 7, 2011 10:36:49 PM) and said that there are 'irrational reasons'.   But only people are irrational.  Reasons are irrelevant, insufficient, poorly arranged, and so on.  A person may be irrational for holding those reasons, but that's the point.  He's making the error in spades there.  We made the distinction again in the follow-up and even provided some examples.  And then Myers defends himself with this:

Dear sweet goddess of academic loquaciousness, is the whole book written in that style? Is anyone going to be able to read it? Those three paragraphs nearly killed me with their preening opacity! And, near as I can tell, all they're doing is fussing over the conjunction of two words that they found incomprehensible.

Wow.  That we were hard to read is a defense?  Seriously?  I now know why Myers thinks that most sophisticated defenses of religious belief are totally stupid.  He doesn't understand them, because he has no interest in reading hard things.   A shame, really, that someone who stands for rational discourse and reason helping has no interest in responding to criticism with any.

Oh, and if we needed to make explicit the form of the fallacy, it's ad hominem abusive.  Classic, baby, classic.

Ad hominem tu quoque, Hasty Generalization, inconsistency, Jonah Goldberg

I won’t forget to place roses on your grave

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Tu Quoque arguments, it seems to me, have a statute of limitations on when the first of the two inconsistent acts can be relevantly inconsistent with the second. (See my long article in Informal Logic for the full story)  For example, someone may express appropriate surprise at the fact that the altarboy later became an atheist when he was a grownup, but that's not inconsistency in the relevant sense for an accusation of hypocrisy.  The two acts need to be close enough in time for them to be relevant to each other.  And so it's usual when someone runs an argument from inconsistency, she will say something like:

Person S says we should not do X, but then she turns right around and does X.

The important thing is that S turns right around and does it.  If she did X years ago, perhaps S has learned her lesson.  Or she's changed her mind.  Or maybe the facts regarding X have changed.  X may be the best option, nowadays.  The lesson: with charges of hypocrisy, time's relevant.

With that in mind, let's look at Jonah Goldberg's commentary on the (albeit grudging) praise of Ronald Reagan's presidency from liberals.  This is part of a trend he sees. Barry Goldwater, after being demonized by LBJ, was later portrayed as an "avuncular and sage grandfather type." William F. Buckley, too, went from being called a Nazi to later being an actual defender of liberalism.  Reagan, now:

As we celebrate the 100th anniversary of his birth, the Gipper is enjoying yet another status upgrade among liberals. Barack Obama took a Reagan biography with him on his vacation. A slew of liberals and mainstream journalists (but I repeat myself) complimented Obama’s State of the Union address as “Reaganesque.” Time magazine recently featured the cover story “Why Obama (Hearts) Reagan.” Meanwhile, the usual suspects are rewriting the same columns about how Reagan was a pragmatist who couldn’t run for president today because he was too nice, too reasonable, too (shudder) liberal for today’s Republican party.

Trouble is, while Reagan was alive, liberals didn't have too high an opinion of him:

[My] favorite comes from Madame Tussauds Wax Museum in London, which in 1982 held a vote for the most hated people of all time. The winners: Hitler, Margaret Thatcher, Ronald Reagan, and Dracula.

Now, first, note that these are cases where we're looking at things said in 1982 and 2011.  Almost thirty years difference.  Second, note that these inconsistencies are ones distributed over a group, Liberals, not individual people.  Regardless, it's almost as though Goldberg isn't paying attention to the subtext of these retrospectives:  that despite the fact that liberals disagreed with these conservatives, liberals could nevertheless see their virtues as people in retrospect.  And one of the reasons why those virtues are worth mentioning now is that current conservatives so clearly fail to have them.  I take it back.  Goldberg gets that part:

[S]o much of the effort to build up conservatives of the past is little more than a feint to tear down the conservatives of the present.

But, for some reason,  he thinks instead this is a point he's scoring on liberals by showing how they're inconsistent.  Again, in cases where time's changed the variables, sometimes what you've inveighed against earlier becomes the best choice.  Ask any liberal: would you take  Reagan or Buckley over Palin or Goldberg for a decent conversation about government and political norms?  You know the answer.  Goldberg thinks this means that liberals think that the only good conservative is a dead conservative. He's missed the point.  The point, instead, is sadly that all the good conservatives are dead.

Ad Hominem Abusive, Straw Man

What about quests?

So Bill O'Reilly, cable TV blowhard hardly worth commenting on, has advanced the argumentum ad aestum (ex aesto?  ab aesto?–ideas anyone), or the argument from the tides, for the existence of God.  The thought goes something like this:

O'REILLY: I'll tell you why [religion's] not a scam, in my opinion: tide goes in, tide goes out. Never a miscommunication. You can't explain that.

SILVERMAN: Tide goes in, tide goes out?

O'REILLY: See, the water, the tide comes in and it goes out, Mr. Silverman. It always comes in, and always goes out. You can't explain that.

You can explain it–moon, gravity, etc. (from the same link as above):

Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.

Most places in the ocean usually experience two high tides and two low tides each day (semidiurnal tide), but some locations experience only one high and one low tide each day (diurnal tide). The times and amplitude of the tides at the coast are influenced by the alignment of the Sun and Moon, by the pattern of tides in the deep ocean (see figure 4) and by the shape of the coastline and near-shore bathymetry.

O'Reilly remains unconvinced.  He replies:

Okay, how did the Moon get there? How'd the Moon get there? Look, you pinheads who attacked me for this, you guys are just desperate. How'd the Moon get there? How'd the Sun get there? How'd it get there? Can you explain that to me? How come we have that and Mars doesn't have it? Venus doesn't have it. How come? Why not? How'd it get here?

Now now Bill, there's no reason to throw around the insults.  There's a perfectly adequate explanation for all of this.  Besides, the original argument had to do with the regular behavior of the tides (a sign, I'd say, of an obsessive-compulsive deity), not with the existence of objects. 

In all seriousness, O'Reilly displays an unfortunate characteristic of the cable TV blowhard (print pundit, etc.)–the near constant attempt to make the closing argument.  It's not just that his objectors are wrong (they're not); it's that the argument with them (pinheads) is over; they're "desparate," they have nothing to contribute.  A mind such as O'Reilly's, however, will never use the closer alone, he'll use it in conjunction with some variety of straw man or other fallacy.  Here I think he's changed the subject, and then accused the objector with not having an answer to his new argument (in their old argument).  I suppose this is a representational straw man, as that wasn't the point in the first place of the objector's argument. 

*For the title: watch this, the greatest review of any kind anywhere.

Ad Hominem Abusive

He forgot to mention that he is fat

We got twenty feet of snow around here, complete with thundersnow, so what better day could there be for a global warming post.

"Al Gore is fat" is shorthand for all of the ad hominem (meanie-meanie-bo-beanie variety) that people have heaped up on Al Gore for his attempt to explain the science of global warming to a science-disliking nation. 

Now our new Senator, Mark Kirk, has found a new way to achieve the same basic goal:

Another Republican blasted from both sides of the spectrum for his record on emissions, Sen. Mark Kirk of Illinois, said he is "not terribly concerned" about taking heat from green groups for his criticism of EPA action on carbon emissions.

"The consensus behind the climate change bill collapsed and then further deteriorated with the personal and political collapse of Vice President [Al] Gore," Kirk said in a brief interview last week.

The thought goes something like this.  Al Gore's (personal characteristic) makes me doubt the scientific consensus behind global warming, because who would believe something that a (personal characteristic of Al Gore) believes.  

Update:

Then, FWIW, there's this funny item.