Who said anything about modern day? I believe I mentioned earlier in my comments that the effect of drugs on humans is the same for any period in history, be it a 19th century Chinese man, or a 21rst century American.
I did not represent the picture, or the linked article (from which I found the picture) as being modern. In my mind, the "when" factor is irrelevant. Human physiology has been pretty much the same for at least all of recorded human history. We still possess the same chemical receptors as did the Neanderthals.
In any case, I learned of the Platzspitz debacle from Listening to the Rush Limbaugh show back in 1994.