"but the more I looked into it the more I realized how little sense it would make." True, but what is the probability for someone to become the world oldest pe

"but the more I looked into it the more I realized how little sense it would make." True, but what is the probability for someone to become the world oldest person to ever have lived, and then to also outlive the second oldest by 3 years. It is 1 in 100 billions. You can read this paper that did some math on this https://www.liebertpub.com/doi/10.1089/rej.2019.2227 https://www.liebertpub.com/doi/10.1089/rej.2019.2227 It concluded that the probability of an identity switch to be 99.99%