The ESR is a unit of ego. 1 ESR is basically redefining everyone around you to only exist in your own personal universe, where you of course are the most important person alive. Thus 1 ESR is the maximum this unit can ever attain, anything above 1 would mean instant insanity. The esr is like the Farad, a hopelessly large unit of measure. Most individuals on planet Earth have egos measured in pico-esrs.