Social Fermi Problem! How many people are involved in getting me a cup of coffee in the morning?

Consider the entire process, from the harvesting of the bean to the brewing up; include anyone who inputs information that makes this process possible.

— Simon DeDeo (@SimonDeDeo) November 25, 2019

There is no way to determine this very precisely as contributions can be minuscule (do guards count? do those who installed the floor of the processing plant?) and remote, but I’d say about 2,000 people.