If a tree falls in a forest and no one is around to hear it, is it being at work sounding, despite the absence of one who is being at work hearing? The answer, obviously, is yes. And the answer is also no. This is Aristotle, after all. Join us as we discuss the Master of Those Who Know on the two-fold nature of hearing and seeing, the perils of explaining how you know that you know without getting caught in an infinite regress, complex relationships the qualities of which are not contained in their component parts, and many other nearly-imponderable wonders.