In BIO-Complexity, a New Model for Human Ancestry

In 2012 at a scientific conference I met a Swedish population geneticist named Ola Hssjer. He and I sat down in the lobby of the hotel where we were staying to discuss what kind of population genetics model might be possible to test whether humanity could have come from a single first pair of humans. The motivation for doing so was the repeated challenge from other population geneticists claiming that we humans had to come from a population of thousands, not just two. He and I both knew the...