Very interesting! Bit of a tangent question, but does anyone know of good resources to read upon current theories of human migration (such as the migration to North America mentioned in the article)?
Other people have mentioned Graham Hancock and Jared Diamond. These authors are fine as entertainment, but they're pretty far removed from the academic consensus.
I'm the one that mentioned him elsewhere in the thread. It's sad to me that he gets so much shit in scientific circles when he's quite reserved with making truth claims, instead making hypotheses that are unfortunately misaligned with current theories and so derided as pseudo-science or bullshit.
That said, do you know of a more current layman-accessible book on the topic?