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On “A Programming Language, now in HTML (50th anniversary)”
It has an incredible amount of elegant power for some things (see link to this video if you want to immediately fall in love). But I've found that trying to use it for most things just isn't worthwhile. It feels like cheating every time I have to escape from its array programming core to the more familiar flow control structures that only came along in later versions of APL. I think it makes a good puzzle language (i.e. the fun comes from figuring out _how_ to say something rather that just raw getting stuff done), but unfortunately, it's even more of a puzzle to figure out how code that someone else wrote works. For full context: I've spent more time using J than APL itself.