I don't understand why you say that my comment is reductive. It's adding nuance to the topic at hand, rather than removing it. The original comment talks about

I don't understand why you say that my comment is reductive. It's adding nuance to the topic at hand, rather than removing it. The original comment talks about a situation where we constrain ourselves to "rigid types"; the child comment remarks on Rice's theorem having consequences for the analysis of general Turing machines; and I remind the commenter that we have already restricted ourselves to Turing machines satisfying some type system. Another way to express the same point of view is to say that I am arguing that the Curry-Howard isomorphism is more relevant to the situation at hand than Rice's theorem. (This might be the "promise" that the original commenter was referring to.)