All this time, many people have believed themselves to be an individual. Ain’t so. We are all walking colonies of microbiota in a continuing struggle to take control and supremacy in the larger frame that is the human form.
Is man perfectable? Maybe not, so long as these warring colonies of microscopic life within hold veto power over our destiny.
Probiotics, such as they are, are passed from parents to the young during the acts of physical caressing, a more enduring legacy than wealth or social training. Some exceptionally healthy specimens of humanity, who have seemed to have won in life’s lottery by getting some particularly beneficial probiota introduced early in life, may be the source of microbiota transplants.
Not so sure I would like to have somebody else’s feces implanted in my gut, though.
The Aztecs in Mexico City, collected feces, dried it, turned it to powder and used it as table salt.