Modeling monks and a cafeteria (hydrology)

Tom Pagano explains “how to model monks going in and out of a cafeteria and how it is like a hydrological model“:

The classic analogy for hydrology models is that soils hold and release water like a series of leaky buckets. But instead, let’s start by discussing how to model a cafeteria/mess hall/canteen for hungry meditating monks….

(Thanks to investigator Brandon Treese for bringing this to our attention.)