How much can we "debias" ourselves? What should we do to become more rational? When discussing those issues, people usually focus on sophisticated debiasing techniques (“pre-mortem”) and advanced concepts from epistemology and statistics. What's often forgotten is that we already have a bunch of very simple but effective techniques for improving our rationality, such as (cf. Grice’s maxims):
“Don’t believe things for which you lack evidence. And don’t say such things in discussions.”
“Don’t make irrelevant personal attacks.”
“Don’t attack straw men."
“Define your terms clearly.”
“Make one point at a time.”
“Try not to be too emotional when thinking about heated issues.”
It seems to me that irrationality regarding moral and political issues (arguably the most important form of irrationality) is very often due to failure to apply these very simple techniques. That was certainly my experience when I argument-checked opinion pieces and election debates. Most fallacies I identified were extremely basic and boring (cf. my post Frequent fallacies). Maybe the most common was failure to provide evidence for claims that need evidence.
So maybe what we need to do to make people more rational isn’t primarily to teach them sophisticated debiasing techniques and advanced concepts. They are costly to learn, and most people have other, more pressing things to attend to. People who suggest new interventions and social reforms often neglect such time and attention costs. One might also suspect that people focus on the more sophisticated rationality techniques partly because they find them more interesting to think about than the basic and boring ones.
Instead, maybe we should focus on getting people to apply the most basic techniques consistently. Some of the sophisticated techniques are no doubt useful, but I'm not sure the primary focus should be on them.
To make people actually use these basic techniques, what's needed is strong social norms, saying that you shouldn’t believe or say things you lack evidence for, that you should define your terms clearly, etc. The strength of such norms have varied a lot over the course of history - and still varies today across different contexts. And my sense is that people’s actual rationality by and large reflects the strength of those rationality norms. So these norms can be pushed more or less, and I would guess that they are not yet pushed as much as they realistically could be pushed. Still, it’s obviously a difficult task, and I’m unsure about how to best go about it.
(This post was first posted on Facebook, 3 February 2020. Slightly revised.)
This link doesn't seem to work anymore: https://stefanfschubert.com/blog/2020/6/17/frequent-fallacies, just fyi.