[gpm]

Some people really like the idea of concatenative languages. I think this is probably reasonably viewed as "research into making those actually usable", in addition to a fun hobby project.

Here's a blog post that tries to motivate them: https://evincarofautumn.blogspot.com/2012/02/why-concatenati...

Here's another interesting recent attempt: https://www.dawn-lang.org/posts/introducing-dawn-(part-1)/