WHAT IS POPPER’S PROBLEM?

Abstract

"We are not students of some subject matter but students of problems" Conjectures and Refutations, p. 67. But what problem was Popper a student of? Asked this question, Popper might no doubt reply that he has already answered it. And, of all philosophers, he has tried hardest to articulate what motivated his philosophy. Yet there is something missing. Other philosophers following Plato and Descartes have taken philosophy to be a search for the justification of our beliefs. Popper though has explicitly rejected this. But what has taken its place? What is Popper's problem?