Warrk said:

No worries buddy. You might have heard about the recent outcry about fake honey in Australia? Mass spectrometry was mentioned in some reports as the best method for detecting honey contaminated with other plant sugars and syrups.

Do you think it is likely or possible that the cultivation of mushrooms - whether containing psilocybin or not - predated the advent of agriculture? This is an interesting question in itself. Mushroom cultivation in those early days circa. 10,000-15,000 years ago might have been something as simple as gathering dung from herbivores and depositing onto known patches of mushrooms perhaps?

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