An active reading habit (of books) is one of the most reliable ways to achieve wisdom. Why? - Books require a "Goldilocks" amount of sustained, slow effort given to one topic. Not too costly to pursue that it is a bodily harm risk, but not trivial either in terms of time and attention investment. This slows down the frenetic nature of a mind that latches onto heuristics. - By being exposed to different well-formed id…
Several benefits from deeply knowing a limited subject: - when you listen people who are "well known" talking stupid shit about a topic you understand that the info you're getting is not always that high and you need to check multiple sources (if you need to make a decision) - you understand complexity better and "survival" bias - you can even bet for fun on a prediction market when you see a stupid narrative getting puffed up (I've made around 1k after the CrowdStrike bet that it wasn't a "hack")
But the biggest win is to put more knowledge on your "tree" you've grown from a simple subject to related areas. This mental skill is applicable in almost all complex situations and this might be related to "the wisdom" you're talking about.
The downside is the more you know, the more cynical you get with your sources :)