Intricate Language

” The presence of an organism modifies the environment to which it is exposed, so that the physical stimulus received from the environment is partly determined by the physiological response to the environment.”  – Principles of Environmental Physics, J.L. Monteith and M.H. Unswoth.

Intricately put.  A differential equation in action.  I wonder how to measure these things. 

Might it apply to psychological or social scenereos, too?