Zettelkasten is nothing new and just hype. Only shows that you just don't know this space, and it's history. Obviously there is improvement, but it's not in methods or data-structures, it's with technology and implementations. We are now at the point where we can move fast with implementations and glue much more features together.
Then please, illuminate me. Because the implications of Luhmann's use of the Zettelkasten weren't widely available till the last decade, and weren't available in software until the same period.
Luhmann methods are known since the 80s, at least in europe. And I think I saw the first digital implementation around 2006 or 2008. Looking it up, the first(?) Digital Zettelkasten after Luhmann method was in 2004 already at version 2.5, so it's likely quite older. But dates are not important here.
Luhmanns method is simply not that special, nor unique. Many scientists and artist used similar methods and tools. He is mostly just replicating what was common at the time, but with some twist. And in the 80s or 90s is would be really awesome, probably even somewhat groundbreaking. But today? It's just another graph-system which you find in wikis or hypertext for decades now. And most people are not even using the benefits of his number-system, just calling everything zettelkasten which is just a wiki otherwise, leaving even less of his originality. Though, in digital space it make less sense anyway, so not a big lose.
But for whatever reason, there now this hype from people who seem to have know knowledge about those space or it's history, or even really understand the terms, thinking Luhmanns method is called Zettelkasten...
