No Particular Night or Morning explores existential uncertainty, isolation, and the limits of proof through the unsettling perspective of a man who can only believe in what he can immediately see, touch, or verify. As Hitchcock begins to reject the existence of Earth, memory, and even other people when they are not physically present, Bradbury builds a disturbing vision of reality reduced to isolated moments, stripped of continuity and meaning. As the story progresses, this rigid form of rationalism leads to the breakdown of identity and perception, revealing how dependent human life is on imagination, memory, and shared belief. Set against the vast emptiness of space, Hitchcock’s descent becomes both psychological and symbolic, culminating in a chilling rejection of everything—body, world, and self—leaving only “space” and “the gap.”