For two decades Adolf Grünbaum's publications have shaken the foundations of psychoanalysis and stimulated the thinking of philosophers of science, psychiatrists, psychoanalysts, and (philosophical) psychologists. It all started with Grünbaum's critique of Popper's famous critique of psychoanalysis as not falsifiable. Grünbaum succeeded in giving counter-examples to Popper's claims. Within two years after his own systematic and detailed analysis of psychoanalysis, and especially of Freud's writings in The Foundations of Psychoanalysis: A Philosophical Critique he responded to fortyone reviewers with his "Is Freud's theory well-founded?" (Behaviorial and Brain Sciences 9: pp.217–284 contains his responses together with a précis of The Foundations).