The Medium, whether you are doing it in paper and pencil is no difference than doing it digitally.
Science says otherwise:
https://www.fastcompany.com/40476984/this-is-how-the-way-you...
Science says otherwise:
https://www.fastcompany.com/40476984/this-is-how-the-way-you...
By "doing it" I meant the thought process, the selecting process of what's important, not the medium in which you do your "whole studying".
Also that study means that taking notes by hands is better than with a computer. It doesn't mean learning with paper and pencil is better than with a computer, especially when we involve other things like a spaced repetition software.