Abstract

Reliabilism, one ofthe most significant naturalized epistemological theories, is an an attempt to justify knowledge on the basis of causal reliable procedures. This theory also seems to be the solution for the skeptic claims. However, as this paper suggests, this theory involves many problems; among others, how experiments could cause justified but false beliefs. This difficulty may reveal that naturalized epistemology cannot answer the radical question of skepticism, because it is not a scientific issue. As Quine thought, it implies a metaphysical puzzle. Thus, every philosopher should face a practical decision: to admit it or to discard it as a non-sense question.