@chrisaldrich I tend to think of Luhmann's use of "Zettelkasten" as similar to Apple's relationship to MP3 players. He didn't invent it but may as well have. Also, has the term become specific to Luhmann's method of linking notes (which afaik he did develop)? The pedantic debates on "productivity" forums make me think so. But yeah, writing "popularized by" rather than "coined by" would be better.