Proponents of the ruling theory tell us that we are all undoubtedly intelligent enough to fully grasp their theory, as long as we concur with it.
For the last forty years, population geneticists have repeatedly said that our population was never smaller than several thousand.
Could humanity have had its origin in a first pair, or did it have to come from a population of at least several thousand?
A bottleneck of two, or a first pair at our origin older than 500,000 years, is possible.
Richard Buggs gives us a look inside the sausage factory where figures on the subject are calculated.