substance
Substance is the shared nightmare of philosophers and theologians, argued without touch and believed without sight. It stands at the start of every argument, only to self-destruct under the question Does it even exist. Originally intended to denote the hidden core of an object, its absence lays bare the debater's laziness and delusion. Each invocation of substance forces one to confront their own impotence. The frantic scramble after what isn't there is humanity's own absurd tragedy.