I certainly believe in the possibility of stuff beyond the "physical world," by which I assume you mean the space-time continuum of our universe. You'd have to

I certainly believe in the possibility of stuff beyond the "physical world," by which I assume you mean the space-time continuum of our universe. You'd have to be a fool to not be open to that possibility, given that we have no idea what or why anything exists, nor what might exist outside of this universe.