LW doesn't seem to have a discussion of the article Epiphany Addiction, by Chris at succeedsocially. First paragraph:
"Epiphany Addiction" is an informal little term I came up with to describe a process that I've observed happen to people who try to work on their personal issues. How it works is that someone will be trying to solve a problem they have, say a lack of confidence around other people. Somehow they'll come across a piece of advice or a motivational snippet that will make them have an epiphany or a profound realization. This often happens when people are reading self-help materials and they come across something that stands out to them. People can also come up with epiphanies themselves if they're doing a lot of writing and reflecting in an attempt to try and analyze their problems.
I like that article because it describes a dangerous failure mode of smart people. One example was the self-help blog of Phillip Eby (pjeby), where each new post seemed to bring new amazing insights, and after a while you became jaded. An even better, though controversial, example could be Eliezer's Sequences, if you view them as a series of epiphanies about AI research that didn't lead to much tangible progress. (Please don't make that statement the sole focus of discussion!)
The underlying problem seems to be that people get a rush of power from neat-sounding realizations, and mistake that feeling for actual power. I don't know any good remedy for that, but being aware of the problem could help.
A related note is that the neurophysiological effect of the epiphany wears out really quickly. I haven't studied which neurotransmitters exactly produce the original good feeling, but I remember reading (apologies for not having a source here) that the effect is pretty strong for the first time, but fails to produce pretty much any neurological effect after just few repeats. By repeats, I mean thinking about the concept or idea and perhaps writing about it.
In another words, say you get a strong epiphany and subsequent strong feeling that some technique, for an example Pomodoro technique, will make you more efficient. After mulling over this idea or concept for a while, the epiphany and the related feeling fades out. You might still think that the technique would help you, but you lose the feeling. Without the feeling, it is unlikely you will do anything in practice. After losing the feeling, you might even start to doubt that the technique could help you at all. When in fact all that has changed is the neurological feedback because you have repeatedly been processing the idea.
I think this is particularly relevant related to instrumental rationality, because I have not found this to have much effect on how I understand things in general. In the case of some behavioral change, I think it requires a certain amount of such "neurotransmitter-based motivation" in order to have any chance of being implemented. I have pretty successfully implemented a couple of behavioral changes which at the time produced a strong epiphanic feeling, but which nowadays don't evoke pretty much any feeling. I implemented them pretty instantaneously (because they were easy to implement) and had them running before the feeling wore out.
One minor exception to this is that you get a new dose of epiphany if you happen to make a new, novel connection related to the technique you're mulling over. This way you can keep the feeling alive longer, but there are only so many of such new connections and they too wear out eventually.
This is why I think that not only do you have to do something about the epiphany in practice, but you have to do it pretty quickly.