Some of the manuscript notes in Wittgenstein's zettelkasten were "apparently written to add to the remarks on a particular matter preserved in the box".ᔥ So much like Niklas Luhmann's wooden conversation partner, Wittgenstein was not only having conversations with the texts he was reading, he was creating a conversation between himself and his pre-existing notes thus extending his lines of thought within his zettelkasten.

https://treeverse.app/

Treeverse is a tool for visualizing and navigating Twitter conversation threads.<br /> It is available as a browser extension for Chrome and Firefox.

https://threader.app/threader-has-joined-twitter

While tree-space has an abundance of context, leaf-space has an abundance of salience.

I've contemplated before how to keep the wiki-like edit history of a live simultaneous multi-chat in a client like etherpad. Each speaker has a different color and can type at the same time, but how could one archive the date/timestamps along with the original as well as who each speaker was?