- 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 ideas (especially if you disagree) widens perspective in ways lived experience can't. A reader is uniquely exposed to ideas from other times in human history, from people who are long gone.
- A reader develops a practical trust in themselves, particularly in that they know they take auto didacticism seriously, and won't shy away from intellectual challenges, which the world presents constantly. As such, they make better judgements.
People often think that being booksmart is having your head filled with useless facts, but this is almost opposite from reality.