"But why?". In this Wireless Philosophy video, Kevin McCain (University of Alabama at Birmingham) explains the Epistemic Regress Problem. The epistemic regress problem arises from the need to give a reason for your belief, a reason for that reason, and so on. After explaining the problem, he explains how the problem has been used to argue in favor of skepticism, and discusses three possible solutions to the problem.
The Epistemic Regress Problem
University of Alabama at Birmingham