@V_ I like the digital brain idea a lot. What I’ve been trying to do is to gather information over time and discover how the pieces fit together. My experience shows me I’m getting closer to a personal wikilog and to a commonplace book such as the one Da Vinci kept for himself than to a ZK. Also, ZK is a system devised by one person, Luhman. It worked for him fine, but strictly speaking, it is not for me…