I’m not seeing a proven causal link between feeding animal milk to human babies and lower infant mortality. The fact that the baby-feeding jars were found in children’s graves doesn’t obviously imply a positive correlation!
Another possibility to explain growing population is that more sedentary lives meant mothers could nurse babies more successfully, or that fewer children died from accidents associated with nomadic life.
I think the point it, again, we’ve been doing it for millenia (literally), not just a fly-by-night fad. Which is funny, because many of the “health” things are EXACTLY that.
Was the mIlk pasteurized or only past her knees?