To demonstrate further the self-serving deception inherent in Heffner's figures, he uses what he argues is a historically supportable average annual population growth rate of 0.456% to the starting population of Flood survivors to 'prove' that today's global population concords so closely with the biblical model that it makes that model wholly persuasive. Elsewhere in his talk, he claims that this growth rate entirely supports a population capable of taking on the work of Egyptian civilization in constructing the 3rd and 4th Dynasty pyramids. Is this statement supportable?
Conceding Heffner's controversial and unsupported claim that the date for the building of the pyramids can reliably be shifted to around 2200 BC, i.e. about 2,300 years after the date he mentions for the Flood, let's apply his growth rate to the post-Flood survivors:
Px=8*(1+0.00456)^2300 = 280,296
Bear in mind this is a global population that has to be spread throughout the many cultures that we know to be coincident with that of Dynastic Egypt, and that around half of this figure would comprise women (140,000). If Heffner is wrong and the Egyptologists right about the date of the great age of construction of the pyramids (c.2680-2500 BC), the population figures based on the model he has chosen to use shows how ludicrous his argument actually is:
World population in 2680 BC = 31,564 (approx. 15,000 women)
World population in 2500 BC = 71,590 (approx. 35,000 women)
No wonder he is desperate to shift the date of the pyramids to 200 years later than Egyptologists understand them to have been constructed.