Old-fashioned note taking makes information easier to retrieve in your head. Pencil and paper notes are a better synthesised set of ideas than typed notes.
Here’s the original research paper, the Pen is mightier than the keyboard.
And while we’re on analog, here’s why a to do list works:
Checking items off of a checklist releases small amounts of dopamine that then fuel us to keep checking off more items, i.e. get more done!
which comes from this article from Trello (so it sells their software).