“Flip around the decimal”… you haven’t accounted for irrational numbers. The reals are not countably infinite. Even if they were, pi is not between zero and on

“Flip around the decimal”… you haven’t accounted for irrational numbers. The reals are not countably infinite. Even if they were, pi is not between zero and one, so would not appear in your list. The rest of your argument is difficult to parse. If you’re interested in this kind of stuff though, I’d really recommend picking some good books on set theory and maybe number theory. Set theory in particular will cover a lot of what you’re talking about.