Imbued with a creeping sense of foreboding or an all-pervasive atmosphere of angst, existential dread has been a deep-seated staple of the horror genre—and it’s not hard to see why. Punctuated by the realization that we are all simply hurtling towards death, humanity has long been stalked by a fear of the unknowable, when faced with our miniscule position in the grand scheme of the...