Action : M@ Lowery

From Wikipedia:

In physics, action is an attribute of the dynamics of a physical system. It
is a functional which takes the trajectory (also called path or history) of the
system as its argument and returns a real number as the result.

It is shown that action is a function of momentum and time and cannot be described without both of these components. Action is the manifestation of kinetic energy and the primary conduit for entropy and decay. Because our existence depends on planetary action at the large scale and electron/atomic action at the small scale, it is a concept we should probably think about more often.