I came to think of it after reading part of one of the answers in OP link: "So yes, it has the story of your life -- but it also has many false stories, many s

I came to think of it after reading part of one of the answers in OP link: "So yes, it has the story of your life -- but it also has many false stories, many subtly wrong statements, and lots of gibberish." The "gibberish" is bound to contain many truths. This kind of encoding is very different from the mathematical idea of subsets. I am probably bending concepts beyond breaking point here, and you are correct.