> I would suggest discussing your approach and your doubts with a mathematician Great point, this is my attempt to do that. Truly, it may be an inefficient me

> I would suggest discussing your approach and your doubts with a mathematician Great point, this is my attempt to do that. Truly, it may be an inefficient means, but it seemed like a simple approach. Also, it is fun, even when I am wrong. It means I get to learn something new and see from a different angle. > Another commenter already pointed out a possible problem of your "mirror" method: you're relying in being able to read a number backwards. To do that, you need to know all the digits. But it doesn't work well with numbers with infinite decimal digits like pi or its inverse. True, this is a glaring flaw in the current reasoning. Thank you for the thoughtful response!