Unknowable Episode 12: Folie à Deux & The Call of the Void

For episode 12 we've decided to delve into a couple of topics that are a bit more conceptual than cryptids and aliens -- folie à deux (French for "madness of two") and "the call of the void" (also known as the High Place Phenomenon). Two psychological concepts that have never quite been pinned down, but make our brain do some pretty frightening things...