Assume for simplicity that the total number of humans who will ever be born is 60 billion (N1), or 6,000 billion (N2).[6] If there is no prior knowledge of the position that a currently living individual, X, has in the history of humanity, we may instead compute how many humans were born before X, and arrive at (say) 59,854,795,447, which would roughly place X amongst the first 60 billion humans who have ever lived.