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by tangentstorm 30 days ago
Yes to pretty much all of the above. It's an extremely terse array programming language in the APL family, but with ASCII primitives and strong distributed programming / IPC support. There are also at least a couple companies that still use K3 (I work at one), and no official support from the author (who went on to make other versions of K that are also awesome but completely different).

IMHO the biggest thing holding K back is lack of a production-ready / batteries included open source implementation. (There are a couple nice open source implementations of K but none of them are as feature complete as this one... Plus this one has at least a start on interoperating with .NET)