When I was young, a very long time ago, school lessons were 25 minutes long. Even then it was known our brains only work really well for that length of time before you need to change activity.
Using a pen is a must for me, possibly because pens, pencils and brushes are tools of my trade as a painter. It somehow seems less abstract. Plus I can write and draw anywhere on the surface - my computer skills aren’t that advanced yet.
Thanks for sharing.