I haven't seen Arrival myself but I had a discussion with someone who did and, boy, did he was extremely on the linguistic determinism side! After some reminescence and analysis of the discussion I came to bold conclusion that defending strong Sapir-Worf hypothesis is very much akin to racism. Basically, you prohibit someone not fluent in the language of your choice the ability to see the world just like you do or ev…
Maybe I'm being too literal, but how can a grammar be Turing complete? The usual definition of Turing completeness is being able to simulate an arbitrary Turing machine. Typical human languages don't do beta reductions like Lambda Calculus, so I fail to see how a grammar (or the language produced by the grammar) can be said to compute anything.
In this analogy G is the 'universal Turing machine'