Our ancestors did not know they were primitive.
They thought they were right up-to-date.
They had sticks and stones
and they could crack bones
and suck out the marrow
of whatever they ate.
They extincted mammoths
and other large herbivores
which, we assume, were delicious,
meanwhile escaping the powerful carnivores
who would have found them nutritious.
They did weaving and pottery,
winning the lottery,
farming and taming animals
and, in large part,
after many false starts,
some stopped being actual cannibals.
They invented rafts (and later boats)
which allowed them to travel to places remote
spreading chaos and causing contagion.
(Even before becoming Caucasian.)
They built canals, erected storehouses,
coming up with both bows and arrows,
increasing efficiency in hunting and war.
(Which latter they found they were well-suited for.)
When they progressed (blundered?) into “modernity”,
thinking they’d found the key to eternity,
the environment collapsed, setting the brake.
Whole damned thing had been a mistake.
¯\_(ツ)_/¯