In case you need an interesting anecdote on human feces and excrement generally
by David Ng
For slides on the value of feces. Like… ecosystem assessment of feces as a seed dispersal system? Nutrient rich manure for soil upkeep? Things that would resemble a sort of poo-nomics: using feces for microbial or metagenomic analysis?
“In 1961 Italian artist Piero Manzoni offered art buyers 90 tins of his own excrement, signed and numbered, each sold by weight at gold’s daily market price.
That would have been a good investment. A tin that would have cost $37 in 1961 was auctioned by Sotheby’s for $67,000 in 1991 — outperforming gold more than seventyfold.”