[Terr_]

Yes, the effectiveness of note-taking (particularly handwritten) on memory has been a subject of scientific interest for a while.

I feel it shares aspects with Rubber Duck Debugging: The effort of taking something you "know" and forcing it back out through other brain-circuits (i.e. language and/or simulating a social interaction) helps to fill gaps that your brain would otherwise skip over. The act of hearing/seeing your output also causes other parts of your brain to analyze it as if it were someone else's thought.

I suspect our consciousness isn't nearly as unified as we like to believe.