Why probabilistic thinking can be an extraordinarily powerful and practical tool to approach the unknown and uncontrollable Photo by Loic Leray on Unsplash In a video published in November 2020, physician and philosopher of science Etienne Klein called for engineers to express their opinions and participate in a public debate. As a result, I decided to take the plunge and offer a different point of view on a topic close to my heart, which is that of decision making and uncertainty.