Horror vacui (philosophy)

In philosophy and early physics, horror vacui (Latin: horror of the vacuum) or plenism ()—commonly stated as "nature abhors a vacuum", for example by Spinoza—is a hypothesis attributed to Aristotle, later criticized by the atomism of Epicurus and Lucretius, that nature contains no vacuums because the denser surrounding material continuum would immediately fill the rarity of an incipient void. Aristotle also argued against the void in a more abstract sense: since a void is merely nothingness, following his teacher Plato, nothingness cannot rightly be said to exist.

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