I've been playing around with graph databases for a while (I am writing one that turns Postgres into one of my own for kicks[1], [2]) and one of the things that became obvious after using the project in production was that it promotes functional reactive programming in a way that most other database paradigms don't.

Even propagation and node invalidation are awesome for rapid what-if style experimentation, and I am so psyched to see more and more attention being paid to graph computing in general.

[1] https://www.github.com/kchoudhu/openarc [2] https://www.anserinae.net/whats-cooking-openarc-edition.html...