You nailed it with this piece.

The goal of Niklas Luhmann (Zettelkasten) = written output (tangible). The goal of Nik Milo (LYT) = contemplation (intangible).

Niklas Luhmann didn't partake in PKM; he did Analog Knowledge Development. He did this in order to write and produce—specifically in creating a thirty-year theory of everything for sociology.

For the past year, I've been teaching how Luhmann's workflow actually worked (using his same tools—pen and notecards). Here's my YouTube channel which may help understand his workflow: https://youtu.be/YfMNwusO6fk

Update: I didn't realize this was you who wrote this, Bob! You already know about me so I didn't need to post my stuff and continue to advertise myself everywhere (like I can't help but do!)