Earlier challenged humans.

# 4061

The fall of Rome, the Mayan and Aztec civilizations.. we have been here many times before.

“the same tragedy struck modern humans some 2 million years later, after the Eemian interglacial. When the Levant dried out after a few thousand years, the Dmanisi humans were unable to escape north, south, or east, and so perished. It is perhaps a tribute to the next emigrants, Homo heidelbergensis, that their offspring were more successful in repeatedly colonizing Europe, possibly three times over the last 800,000 years”

Excerpt From Out of Eden: The Peopling of the World, Oppenheimer, Stephen

https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewBook?id=0

Thoughts appreciated.