Abstract
In light of some Gilles Deleuze’s texts in which he studies the stupidity and error problems, the conflict between heterodox investigations and traditional methods that The X-Files raises can be studied. One discovers that the reasons why Mulder wants to replace a kind of investigation with another and the process through which he performs this transformation are similar to the ones that work on Deleuze’s Images of Thought. Taking into account the impossibility of solving certain problems, which are usually understood as empirical setbacks or insolvable by right, Mulder and Deleuze defend giving up the police method and the dogmatic image of thought, respectively, and searching for other possible structures that do enable them to face up to these problems. Although this non-detective, non-thinker condition must be crossed in order to solve them, this state that makes any supposedly universal method dubious is by the French thinker called "stupidity."