I'm using it at work, e.g. to visualize state machines. It makes it a lot easier to discuss it with business people. In Java there is a great library which translates code into graphviz markup: guru.nidi/graphviz-java

I don't want to diminish importance of graphviz, but PlantUML is better suited for visualizing state machines, message sequence diagrams and whatnot.

PlantUML is a good syntax. Under the hood... it renders via GraphViz

which is exactly why it's great! :)

Does PlantUML do statecharts?

Yes. https://plantuml.com/state-diagram

haha, that is awesome. "show don't tell", "the medium is the message"... and wow, what a great use case! This tree UI for rendering multi-threaded conversations would be a great feature in slack or twitter. Bravo -- and thanks for sharing! :)

Ha nice visualisation. Would be amazing if this was available for more chat systems where conversations branch like this.

Also, as a side note its funny that there is a lot of discussion (including Baez!) about theoretical maths, and one lone tweet about molecular symmetry.

I have the same system for Mastodon ... works well to help visualise the complex discussions that sometimes happen.