Very cool! I love this kind of stuff.
It's fascinating to think about exactly how ancient peoples discovered the various uses of the plants around them without a rigorous experimentation scheme (assuming they were actually using these plants to alter their physical and psychological states). Did they simply do so through trial and error, hoping that the next plant they tried did not kill them? Or did they have some more advanced ability to sense the chemical constituents and their effects on the body that has been dulled over time?
I would wager the former, as the Homo sapiens body likely has not changed significantly in just the past few thousand years. And it is easy to forget the foraging that may have been necessary in these times, which naturally lends itself to a broader level of experimentation than we conduct with our modern, grocery store-demarcated diets.
Almost begs the question: how many plant species are still out there, hidden in the wild, that would have incredible physical, mental, medical, or psychedelic effects if we tried them? How many have gone extinct without us ever knowing about them? It's a fascinating topic.
"Think for yourself and question authority." - Leary
"To step out of ideology - it hurts. It's a painful experience. You must force yourself to do it." - Ε½iΕΎek