Exactly. It's moments like this where Daniel Dennett has it exactly right that people run up against the limits of their own failures of imagination. And they treat those failures like foundational axioms, and reason from them. Or, in his words, they mistake a failure of imagination for an insight into necessity. So when challenged to consider that, say, code problems may well be equivalent to brain problems, the response will be a mere expression of incredulity rather than an argument with any conceptual foundation.