assume spherical cow, is the first step. its a parsimonious perspective that allows you to at least start somewhere. this eventually leads to model refinement,

assume spherical cow, is the first step. its a parsimonious perspective that allows you to at least start somewhere. this eventually leads to model refinement, and refreshed paradigms. eventually it is discovered that cows are a hysteretic, reticular nexxus, of subunits.