Interesting question. I can handwrite a note, never look at it again and remember the thing I wrote about. For me some notes are not about what the note says but the act of physically writing creates a flag in my mind about the thing. In fact, most of my handwritten notes are illegible (my handwriting is awful). I actually do two things during meetings, handwrite notes about aspects I'd like to remember generally, type notes about aspects I need to remember specifically. I'm sure it's different for everyone, that's just how it works for me.