I have some experience here and I spent 50 hours or so on J, but frankly I found the paradigm too biased. I’m not sure it helps —- as a tool of thought —- to c

I have some experience here and I spent 50 hours or so on J, but frankly I found the paradigm too biased. I’m not sure it helps —- as a tool of thought —- to conceive every problem as a nesting of arrays. IMO, having freedom to produce data structures which capture your problem can greatly simplify the algorithmic part. I think you do have to be smarter to use APL/J/K because of this bias: it’s often the case that a direct approach available in a more flexible language will not be available, and you have to transform the problem, which may require a lot more thought.