APL itself looks really really bad language with bad documentation, no real libraries, non-existent type system, bad function names, and I don't see any GPU programming support in it. In the family Matlab is still the best (It can do Monte Carlo simulation on the GPU, and has a great library for different distributions), but it's still much slower language than Julia generally.
Moore mentioned these in passing at the end if the link
https://colorforth.github.io/1percent.html
He was stressing the solution fits the problem. Not a solution which can cover/contain the problem
