I recommend trying APL or K instead. APL has weird symbols, so forces you to abandon any previous notions. K is super minimalistic so easy to keep in mind. B

I recommend trying APL or K instead. APL has weird symbols, so forces you to abandon any previous notions. K is super minimalistic so easy to keep in mind. But J is both huge and very different but uses e.g. brackets as individual characters (not in pairs) and other things that break your visual pattern matching. So it’s a lot more effort, IMO After you have grokked it, if you like it - then, by all means do look at J. It is in many ways a purified APL albeit with ascii only characters, and a few decisions that look good on paper but less so in practice (like forks and trains) I don’t write APL or K or J myself, but my C code (and some of my Python) is dramatically changed as a result of working with K in the past — it is dramatically simpler and faster, although less idiomatic for those languages.