@amWhy Actually, from my (thankfully long past) interaction with DS, I am not so sure he knew the answer at the time of posting. But what was clear to me was that he wasn't at all interested in mathematical inquiry, as opposed to wanting to spread his miracle notation. As evidence for my assessment,
this post has him accepting his own nonsense answer and talking more nonsense in a comment on it. But yes he may have thought he is a modern Socrates...