In this article Peter Attia, who rarely puts a foot wrong in these areas, looks at the bias and noise in decision making. Bias we are all familiar with to some extent, noise is perhaps a concept we know about instinctively but maybe don’t think about how to deal with it. Noise in the context of decision making is where there is “a large variation in decisions pertaining to a given topic”.
Bias and noise are always present in a decision and act independently of one another. The article describes how to identify noise to improve decision. The steps (which are detailed in the article) involve carrying out a “noise audit” and employing “decision hygiene” practices. In summary, to make sound decisions, we need a system and process in place for navigating bias and noise.