Feynman was the medium, not the message, which I’m sure is common knowledge.
I understand what you are saying, but we still lack a quantifier (in the discussione, of course, you have evidently pretty clear ideas). Higher the input, higher the output, but in what terms? How you quantifiy costs and benefits? Considering also that the result, that is the output, is on a different temporal scale than the input, and in this sense it would be a feed-forward mechanism (ignoring more immediate feedbacks).