Your interruptions/work-context are way out there in terms of stress/impact etc.
APL and J : Agreed. Haskell is my refuge when Python starts getting verbose. Even if you're interrupted, there's a slim chance with concise languages that you could carry that line in your head even as you are dragged away from your context.
I do love Haskell too, but I am only a dilettante. I played with Euterpea[1], and I like it's mathematical bent like J and APL. I could probably get more practical work done with Haskell, but I like the way J and APL make me iterate on a short piece of code until it is a diamond. I should look at Haskell again...
APL and J : Agreed. Haskell is my refuge when Python starts getting verbose. Even if you're interrupted, there's a slim chance with concise languages that you could carry that line in your head even as you are dragged away from your context.