Gone is the computer. Here is a fountain pen and paper. It is easier to spread out, easier to gather up ideas in bundles … better for brain? This has the makings of a dissertation.
Familiarity and mastery
Your head gets into a place it never wants to leave. You take command of a subject and want to build on it.
Or should do. I resist mastery in favour of novelty.
So I have to find ways to keep everything fresh. To seek out the challenge.