This objection to the Doomsday Argument (DA), originally by Dennis Dieks (1992), developed by Bartha & Hitchcock (1999), and expanded by Ken Olum (2001), is that the possibility of an individual existing all depends on how many humans will ever exist ("N"). If "N" is big, then the chance of said individual existing is higher than if only a few humans will ever exist. If the individual does exist, this is evidence that "N" is high. The argument is sometimes expressed in an alternative way by having the posterior marginal distribution of "n" based on "N" without explicitly invoking a non-zero chance of existing. The Bayesian inference mathematics are identical.