It would seem like a zettelkasten joke, but Cahall has an index entry on "singular focus", yet it has two entries in disparate places in his zk. [14:02]

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The simple Zettelkasten Method:<br /> 1. Buy index cards 2. Buy a box 3. ??? 4. Profit

Why did the chicken cross the road?

To get to his zettelkasten on the other side!

But when he got there, he realized he had forgotten the slip of paper with his perfect evergreen note. So the chicken crossed the road once again to retrieve it. But almost as if it were a jokerzettel, on the way back, a gust of wind blew the slip right out of the chicken's beak!

The chicken tried to catch the runaway slip, but it kept evading him. He chased that slip all over the farm--through the pig sty, over fences, around the grain silo.

Finally, exhausted but triumphant, the chicken caught the slip and carefully filed it away.

Moral of the story: Don't count your slips before they're indexed!

A priest, a rabbi, and Nicholas Luhmann walk into a bar. They sit down, and the priest says, "Let's all share ideas from our florilegia." The rabbi responds by pulling out his own annotation of a gloss on the commentary of Rashi which comments on the Mishnah and the Gamara. To this Luhmann replies, "You're not practicing the one true note taking religion unless you're using alpha-numeric identifiers and have appropriately cross indexed at sheet 031-R with a link branching off of note 100(1) in ZK I.

Q: Why did the zettelkasten cross the road?

A: It didn't because Barbara Tuchman, Nicholas Luhmann, Jacques Goutor, Johannes Erich Heyde, and Keith Thomas all recommend only writing on one side.

Niklas Luhmann kept a portion of his note taking system (ZK II Note 9/8j) specifically for joke related slips. It has been referred to as his jokerzettel.

This would seem to be in keeping with other examples kept in America by Bob Hope, Phyllis Diller, Joan Rivers, George Carlin, and a wide variety of comics like Adam Sandler et al. who have moved to using notebooks.

This is the first time I've seen the word/phrase jokerzettel in print.