I think the emphasis on “in production” is because it’s assumed that the only people really using APL are folks maintaining legacy codebases. I picture APL lik

I think the emphasis on “in production” is because it’s assumed that the only people really using APL are folks maintaining legacy codebases. I picture APL like COBOL: there’s no(?) reason someone would even toy around with it these days unless there was some intrinsic property of APL that makes it uniquely suited to some problem domain, and to such a degree that people can overlook its major shortcomings. _Is_ there something APL is actually useful for these days?