Survivorship Bias and Ancient Humans

Survivorship Bias and Ancient Humans

Yuval Noah Harari writes almost romantically about ancient human foragers in his book Sapiens. Describing the difference in knowledge, skills, and abilities between modern humans and ancient hunter-gatherers, Harari is absolutely glowing in his descriptions of ancient humans. He praises them for the knowledge, self-awareness, and connectedness between their bodies and the natural world. Something he argues modern humans have lost.
He writes, “Foragers mastered not only the surrounding world of animals, plants and objects, but also the internal world of their own bodies and senses. They listened to the slightest movement in the grass to learn whether a snake might be lurking there. They carefully observed the foliage of trees in order to discover fruits, beehives, and bird nests. They moved with a minimum of effort and noise, and knew how to sit, walk, and run in the most agile and efficient manner. Varied and constant use of their bodies made them as fit as marathon runners.”
I think this paragraph is generally accurate, if a bit hyperbolic, but troublingly, I think this paragraph is also subject to survivor bias. The humans who lived and survived the longest in a dangerous wilderness environment were probably as fit as modern day triathletes. They probably were more aware of seasonal changes and small details in nature that helped them find food and avoid predators. But I don’t see why we would extend those traits to all foragers. It is unlikely that every human was great at all of the skills Harari lays out, and it seems to me that it would be unlikely for all of them to be agile, fit, super proto-homo sapiens. Many probably fell short in a few areas, and if they fell too short in too many areas, then they probably died, leaving us with the survivorship bias that Harari ends up with. Ultimately, this gives us an overly-romanticized perspective of foraging humans.