i had no science, but in college for shorter works i always thought handwriting, typing, and reading it aloud was my allowing my brain to hit a problem in three different (not more, different) ways before / even if ever being in front of another human being (or now their non-union AI equivalent)
i still feel writing something down helps with memory formation, in part because i remember the act of writing it down. cocktail napkins and whiteboards way better than ipads also
i remain obsessed with Pilot v5 rolling ball extra fine; i would say Pilot g2s are for proles but the outcome if you leave it in the dryer is far less severe