ABSTRACT
After presenting again my solution of the problem of induction, I have tried to follow its ramifications into its metaphysical stage, as I call it—far beyond its original scope. Yet my exploration of the ramifications of the problem of induction would be incomplete were I to neglect the problem of the demarcation between science and metaphysics. Indeed, there is a question which is almost always put to me as soon as people realize that I really do not believe in induction, and that I do not even believe induction to play a significant part in the sciences. It is this: if you abandon induction, how can you distinguish the theories of the empirical sciences from pseudo-scientific or non-scientific or metaphysical speculations?
