tl;dr: Author Neal Stephenson (who wrote the Baroque Cycle by hand) argues that handwriting engages more of the brain and offers practical advice for doing it sustainably: use a fountain pen (or gel pen) rather than pencils/ballpoints to minimize force, choose paper with some "tooth," write in cursive, and don't cram pages. He debunks common concerns like writer's cramp, ink disasters, and left-handed smudging, noting these are mostly artifacts of poor tools or outdated penmanship demands. He also mentions educators are returning to handwritten blue-book exams due to AI-assisted cheating.