Yes. For myself, I already subscribed to that philosophy (though am happy to see it written down in a form more eloquent than I could've expressed myself) - your OB posts that come to mind from which I learned something I didn't previously know would be the excellent series on quantum mechanics. But that's not relevant to most people (honestly, quantum mechanics isn't of practical relevance to me either, though it is intellectually interesting). Tsuyoku Naritai is in my opinion the one thing from which most people would derive most benefit.
Followup to: The Most Frequently Useful Thing
What's the number one thing that goes into a book on rationality, which would make you buy a copy of that book for a friend? We can, of course, talk about all the ways that the rationality of the Distant World At Large needs to be improved. But in this case - I think the more useful data might be the Near question, "With respect to the people I actually know, what do I want to see in that book, so that I can give the book to them to explain it?"
(And again, please think of your own answer-component before reading others' comments.)