Objectivity is a subject's delusion that observing can be done without him.
The environment as we perceive it is our invention.
What we need now is the description of the "describer" or, in other words, we need a theory of the observer.
Should one name one central concept, a first principle, of cybernetics, it would be circularity.
Cybernetics is NOT the banana.
First-order cybernetics is the science of observed systems; Second-order cybernetics is the science of observing systems.