The Christian doctrine of Original Sin predicts that every human being deviates from the moral law universally and without exception. This paper tests that prediction against the published behavioral data. Using peer-reviewed research on lying, lustful ideation, anger, envy, dishonesty, and gossip, we establish a conservative floor estimate of 4.33 discrete sins per person per day and construct the empirical distribution of daily sin rates across the population. We then calculate the probability that any human being in the history of the species has achieved a lifetime sin rate of zero. The result is conclusive. The probability is on the order of 10⁻³⁰⁰⁰⁰ or lower, which means that a sinless human life is a 372-sigma event across a total historical population of approximately 112 billion individuals. The Augustinian doctrine is confirmed with 74.4x the certainty of the existence of the Higgs boson: the distribution of human sinfulness makes a naturally sinless human an absolute mathematical impossibility. Pelagius is refuted, not by theology, but by the left tail of the sin distribution.
The one historical exception, Jesus of Nazareth, constitutes a statistical anomaly so extreme that it requires an explanation outside the mathematical distribution of the human norm.
You can read the Veriphysics working paper that proves this: Quantifying the Fall of Man: A Mathematical Proof of Original Sin, if you wish to verify the analytical power and the utility of the new post-Enlightenment philosophy for yourself. And, of course, you can read Veriphysics: The Treatise if you would like to grok what presently passes for the fullness.