I find enjoyment in everything you mentioned (been reading since the Slate Star Codex days!) and I read a good mix of all book types, so I want to offer some gentle push-back. Reading fun fantasy books allows you to take your inner child and imagination out to play, not everything needs to be serious, intellectually challenging, or highly stimulating. Sometimes you have to let your imagination run free and just have fun. Holding space for your imagination to run free also opens yourself up to receiving inspiration or new unexpected ideas.

At the start of this year I read through Rick Rubin's book, The Creative Act: A Way of Being. This book wasn't telling me anything new, but it reminded me of a lot of things that I had forgotten while making me hold space for those ideas related to creativity.

Sometimes I encounter criticism of Newton for having "wasted" time studying and learning alchemy, and people lament how much more he could've gotten done if it wasn't for those distractions. But we don't know if those alchemy-related detours are load-bearing for his achievements!

The sweetest of fruits is fertilized by mountains of shit.