Seeds Over a Wall: Credibility

tl;dr Believing isn’t a good substitute for thinking.

As mentioned in the previous post, Secretary of Defense Robert McNamara, LBJ, Dean Rusk, McGeorge Bundy, and various other decision-makers in the LBJ Administration were committed to the military strategy of “graduated pressure” with, as H.R. McMaster says, “an almost religious zeal” (74). Graduated pressure was (is) the strategy of slightly increasing the amount of military force by steps in order to pressure the opponent into giving up. It’s supposed to “signal” to the opponent that we are absolutely committed, but open to negotiation.

It’s a military strategy, and the people in favor of it were not people with much (or sometimes any) military training or experience. There were various methods for people with military experience to advise the top policy-makers. Giving such advice is the stated purpose of the Joint Chiefs of Staff, for instance. There were also war games, assessments, memos, and telegrams, and their hostility to “graduated pressure” ranged from dubious to completely opposed. The civilian advisors were aware of that hostility, but dismissed the judgments of military experts on the issue of military strategy.

It did not end well.

In the previous post, I wrote about binary thinking, with emphasis on the never/always binary. When it comes to train wrecks in public deliberation, another important (and false) binary is trustworthy/untrustworthy. That binary is partially created by others, especially the fantasy that complicated issues really have two and only two sides.

Despite what people think, there aren’t just two sides to every major policy issue—you can describe an issue that way, and sincerely believe it is, but doing so requires misdescribing the situation, and forcing it into a binary. “The Slavery Debate,” for instance, wasn’t between two sides; there were at least six different positions on the issue of what should happen with slavery, and even that number requires some lumping of people together who were actually in conflict.

(When I say this to people, I’m often told, “There are only two sides: the right one and the wrong one.” That pretty much proves my point. And, no, I am not arguing for all sides being equally valid, “relativism,” endless indecision, compulsive compromise, or what the Other term is in that false binary.)

I’ll come back to the two sides point in other posts, but here I want to talk about the binary of trustworthy/untrustworthy (aka, the question of “credibility”). What the “two sides” fallacy fosters is the tendency to imagine credibility as a binary of Us and Them: civilian v. military advisors; people who advocate “graduated pressure” and people who want us to give up.

In point of fact, the credibility of sources is a very complicated issue. There are few (probably no) sources that are completely trustworthy on every issue (everyone makes mistakes), and some that are trustworthy on pretty much nothing (we all have known people whom we should never trust). Expertise isn’t an identity; it’s a quality that some people have about some things, and it doesn’t mean they’re always right even about those some things. So, there is always some work necessary to try to figure out how credible a source is on this issue or with this claim.

There was a trendy self-help movement at one point that was not great in a lot of ways, but there was one part of it that was really helpful: the insistence that “there is no Santa Claus.” The point of this saying was that it would be lovely were there someone who would sweep in and solve all of our problems (and thereby save us from doing the work of solving them ourselves), but there isn’t. We have to do the work.[1] I think a lot of people talk about sources (media, pundit, political figure) as a Santa Claus who has saved them from the hard work of continually assessing credibility. They believe everything that a particular person or media says. If they “do their own research,” it’s often within the constraints of “motivated reasoning” and “confirmation bias” (more on that later).[2]

I mentioned in the first post in this series that I’m not sure that there’s anything that shows up in every single train wreck, except the wreck. Something that does show up is a particular way of assessing credibility, but I don’t think that causes the train wreck. I think it is the train wreck.

This way of assessing credibility is another situation that has a kind of mobius strip quality (what elsewhere I’ve called “if MC Escher drew an argument”): a source is credible if and only if it confirms what we already believe to be true; we know that what we believe is true because all credible sources confirm it.

This way of thinking about credibility is comforting; it makes us feel comfortable with what we already believe. It silences uncertainty.

The problem is that it’s wrong.

McNamara and others didn’t think they were making a mistake in ignoring what military advisors told them; they dismissed that advice on the grounds of motivism, and that’s pretty typical. They said that military advisors were opposed to graduated pressure because they were limited in their thinking, too oriented toward seeking military solutions, too enamored of bombing. The military advisors weren’t univocal in their assessment of Vietnam and the policy options—there weren’t only two sides on what should be done—but they had useful and prescient criticism of the path LBJ was on. And that criticism was dismissed.

It’s interesting that even McNamara would later admit he was completely wrong in his assessment of the situation, yet wouldn’t admit that he was told so at the time. His version of events, in retrospect, was that the fog of war made it impossible for him to get the information he needed to have advocated better policieds. But that simply isn’t true. McNamara’s problem wasn’t a lack of information—he and the other advisors had so very, very much information. In fact, they had all the information they needed. His problem was that he didn’t listen to anyone who disagreed with him, on the grounds that they disagreed with him and were therefore wrong.

McNamara read and wrote reports that listed alternatives for LBJ’s Vietnam policies, but they were “poisoning the well.” The alternatives other than graduated pressure were not the strongest alternative policies, they were described in nearly straw man terms, and dismissed in a few sentences.

We don’t have to listen to every person who disagrees with us, and we can’t possibly read every disconfirming source, let alone assess them. But we should be aware of the strongest criticisms of our preferred policy, and the strongest arguments for the most plausible of alternative policy options. And, most important, we should know how to identify if we’re wrong. That doesn’t mean wallowing in a morass of self-doubt (again, that’s binary thinking).

But it does mean that we should not equate credibility with in-group fanaticism. Unless we like train wrecks.









[1] Sometimes people who’ve had important conversion experiences take issue with saying there is no Santa Claus, but I think there’s a misunderstanding—many people believe that they’ve accomplished things post-conversion that they couldn’t have done without God, and I believe them. But conversion didn’t save them from doing any work; it usually obligates a person to do quite a bit of work. The desire for a “Santa Claus” is a desire for someone who doesn’t require work from us.

[2] Erich Fromm talked about this as part of the attraction of authoritarianism—stepping into that kind of system can feel like an escape from the responsibilities of freedom. Many scholars of cults point to the ways that cults promise that escape from cognitive work.