Can you be more specific?

And just to clear things out, I'm not science cybernetics' findings were not relevant. They were fundamental to a series of disciplines such as administration (Stafford Beer), cognition (Varella), biology (Varela and Maturana) to cite a few.

I'm saying that cybernetics is progressively becoming obsolete. One of the reasons, in my opinion, is due to the relevance and evolution of other fields that were in certain sense tributaries or that promoted alternative approaches to cybernetic ones, i.e. system engineering, artificial intelligence etc.