From the article,

    What can we learn about what other people are thinking, about their mental models of the world, by paying very careful attention to the words they use?

A lot of people will make fun of you, but I think everyone should read a book or two that's not airport pulp.

Given you're on HN, try Gödel, Escher, Bach. https://www.amazon.com/G%C3%B6del-Escher-Bach-Eternal-Golden...

Be warned though, it'll take you well over a decade.

This comment really speaks to the article.

The commenter didn't even have the curiosity to read and comprehend the article, and made the articles point in that.

You can learn anything from books, you never needed a college for that.

Except, discussing things, having somebody else grade your coursework etc., you don't get that from books or YouTube.