> What background do you come to J from? Another programming language?

Yes, I’m very fond of trying out different languages. My main language for personal projects is Haskell.

> How do you like it?

I haven’t used J for a while, actually, but I recall finding it a bit confusing, especially when rank manipuations are involved. It has a larger vocabulary than most array languages, which I felt made it hard to learn. It was great fun though!

Fun. I've lost count of the languages I've learned and gotten paid to use over the years, but it's mostly very exciting to add a new one to the list.

Haskell is one I haven't used yet. The closest I've come to that is a weekend fling with OCaml... much respect for the ML work though!

I hear you for the complexities in J though. I've intentionally limited k-synth to single letter upper case variables and the verbs are also one character... I might regret this at some point.

Have fun! It makes the world a better place!