[the notes from the book were retrieved with kobogarden, with the purpose of aiding to create a map of the ideas the book left me. The full list of book highlights can be found here. I'm still reading the book, so notes might come a bit later.]

On How to Take Smart Notes, Ahrens mentions the importance of strong mental models.

Charlie Munger, Warren Buffett’s partner and vice chairman of Berkshire Hathaway, stresses the importance of having a broad theoretical toolbox – not to be a good academic, but to have a good, pragmatic grip on reality. He regularly explains to students which mental models have proven most useful to help him understand markets and human behaviour. He advocates looking out for the most powerful concepts in every discipline and to try to understand them so thoroughly that they become part of our thinking. The moment one starts to combine these mental models and attach one’s experiences to them, one cannot help but gain what he calls “worldly wisdom.” The importance is to have not just a few, but a broad range of mental models in your head.

This book is a tentative exploration of mental models.

the map is not the territory

In order to use a map or model as accurately as possible, we should take three important considerations into account:

Reality is the ultimate update.

Consider the cartographer.

Maps can influence territories.

The map is considered to be a generalisation of the territory; in that sense, it can produce skewed perspectives, or simplifiction of the problems at hand.