A human doing it is impressive. A human performing many computations a computer could do would be impressive. I don't get impressed when a computer computes a number. A language machine translating is just... doing what a language machine does? When a language machine starts doing something other than translation, I will be impressed. If computers starting singing without any human intervention, for example, would be incredible! C3PO knows many languages—he may know Rust and Zig. C3PO translating from Zig to Rust isn't surprising to me. Sounds par the course for a robot who knows languages.