I made a kind of related point in: https://www.lesswrong.com/posts/3xnkw6JkQdwc8Cfcf/is-the-human-brain-a-valid-choice-for-the-universal-turing
I made a kind of related point in: https://www.lesswrong.com/posts/3xnkw6JkQdwc8Cfcf/is-the-human-brain-a-valid-choice-for-the-universal-turing