The Magic Ratio of Positive & Negative Feedback. As Supervisors & Managers, we always want to help our teams to improve by giving help & advice. However, the way we give feedback can actually have the opposite effect. According to Nobel Prize-winning scientist Daniel Kahneman, humans experience approximately 20,000 moments everyday, defined as a few seconds which our brain records as an experience. Scientists have proposed that our brains keep track of positive & negative moments & that a running tally in our mind determines our overall mood.