Additional Thoughts on Pressure

I am obsessed with pressure, particularly the internal pressure of fluids. Unlike viscosity, it is absent of frictional forces, and it is a key driving force in both human behavior and aerospace flows. Pressure is an essential component of a perfect fluid and appears on the right-hand side of the Navier-Stokes equations. Without pressure, fluid flow is boring, and people cannot move forward. Pressure can manifest internally, like a fluid, or externally, on our boundaries. However, I prefer to derive my motivation from within, like intrinsic (motivation) pressure. Think of the poor fluid parcel or person moving only to external forces that they know nothing about (see Laplace).