I am not sure about the rediscover part or that there's any synergy going on there. For me the value of notes is that they cure my "fear of forgetting". File it away knowing that it will be there if it's necessary. I don't have to spend mental energy and have the nagging feeling of losing something. You can then accumulate new things and do the same thing to them if they are not immediately useful/necessary. This is the gist of what I got from the part of the GTD book I read too. Though everybody is different of course.