Why this word is great
PLENISM — [Noun] The belief that all space is full of matter, often summarized by the phrase *nature abhors a vacuum*. From Latin *plenus* ("full") + *-ism* (denoting a belief or system). Unlike "atomism" (which insists on the void between particles) or "vacuumism" (which embraces emptiness as a fundamental truth), plenism is the stubborn insistence that the universe is a seamless, unbroken plenum. It is the weight of water pressing in from all sides in the ocean’s depths, the dense hum of a summer night thick with insects, or the silent pressure of a hand pressed flat against another in perfect contact—proof that absence is an illusion, and the world is always, relentlessly, full.