How do you notice when you're rationalizing? Like, what *actually* tips you off, in real life?
I've listed my cues below; please add your own (one idea per comment), and upvote the comments that you either: (a) use; or (b) will now try using.
I'll be using this list in a trial rationality seminar on Wednesday; it also sounds useful in general.
The problem is not with 'rationalization'. Many mathematical proofs started with a [unfounded] belief that some conjecture is true, yet are perfectly valid as the belief has been 'rationalized' using solid logic.
The problem is faulty logic; if your logic is even a small bit off on every inference step, then you can steer the chain of reasoning towards any outcome. When you are using faulty logic and rationalizing, you are steering into some outcome that you want. When you are using faulty logic and you are actually thinking what is true, then you just accumulate error like a random walk, which gives much smaller error over time.
Other issue - most typically people who are rationalizing are not the slightest bit interested in catching themselves rationalize.
edit: to clarify. You may have a goal of winning a debate, not caring what is the true answer, and come up with an entirely valid proof, if for bad reasons. You may also have a goal of winning a debate, be wrong, and make up some fallacious argument, neglect to update your belief, et cetera. That happens when you are not restricting yourself to arguments that are correct. Or you may have a goal of winning a debate, be wrong, and fail to make an argument because you are successfully restricting yourself to arguments which are correct, and don't use fallacies to argue for what you believe in anyway.
In mathematics, the reasoning is fairly reliable, and it doesn't make a slightest bit of difference if you are arriving at a proof because you wanted to know if conjecture is really true, or because you wanted to humiliate some colleague you hate, or because you wanted not to lose debate and didn't want to admit you're wrong. With unreliable reasoning, on the other hand, you are producing mistakes whenever you are rationalizing or not, albeit when rationalizing you tend to make larger mistakes, or become a mistake factory. Still, you may start off with good intention to find out if some conjecture is true, and end up making a faulty proof, or you may start off with a very strong very ill founded belief about the conjecture and get lucky to be right, and find a valid proof. You can't always trust the arguments that you arrived at without rationalizing more than the ones you arrived at when rationalizing.
Why is this getting down voted?