Once we understand our present order of knowledge in this way, it becomes rather obvious why something like the UFO phenomenon has such a difficult time fitting into that order. The reason? It does not follow this binary script. Many UFO phenomena, after all, are neither purely objective nor purely subjective. They are both. Worse yet (or better yet), some of their most extreme instances involve phenomena that simply cannot be rendered as purely material or purely mental. As such, they threaten to collapse altogether this useful distinction between the external and internal worlds.
