Writing things down physically on paper actually makes me memorize things much more easily as I can have muscle memory to attach to a thought. I don't actually go back to re read much of my written stuff, because I can take a quick peek and know what I wrote way back.
As for people who say it's a huge time commitment, you can just pen something down every day or once a week as long as you write something down it's good to know what happened.
As for people who say it's a huge time commitment, you can just pen something down every day or once a week as long as you write something down it's good to know what happened.