Abstract
In this paper, I describe the main lines of modern error theory, a systemic theory which regards errors not as the results of someone’s negligence, but as parts of a complex system. Bearing in mind that errors must be considered as such by an observer or attributor, I expose Wittgenstein’s conception of the attributor responsible for discerning if a strange event constitutes an error or an anomaly. Subsequently, I illustrate this conception of the attributor by describing some traits of the role played by many attributors in business organizations, specifically in the production line of a car manufacturer’s plant, when carrying out the rootcause analysis of problems that arise in the plant. Finally, I reveal a paradox whereby if the attributor denies the possibility that anomalies may happen without being able to explain their source within the system that he or she takes as reference, then the very idea of system no longer makes sense.