>>39563
The remarkable "achievement" (this word tends to imply "goodness", hence the quotes) of agriculture and grain-based diets was not an improved nutrition for those who already had good access to resources, but for massive numbers of low-class individuals who would otherwise starve to death. In other words, they did not enable a (especially) healthier mankind, they enabled an exuberant mankind. It seems that massive populations were unsustainable previously.