 Bruno’s elemental theory disproved outright the dominant Aristotelian view that the universe was finite but infinitely divisible. It also disproved ancient atomism. Democritus, Epicurus, Lucretius and others had, it is true, correctly surmised that the universe was infinite and comprised an infinite number of finite, indivisible, atoms. But their atoms were solids, although imperceptible ones, of various shapes, weights and sizes floating in a vacuum, a conclusion that led to a mechanistic view of the universe, which Bruno did not countenance. Correctly understood, atoms were incorporeal spheres with spatial locations. Soul, working through the intermediary of aether or spirit, joined these incorporeal, identical, spheres to make a body. Indeed, they were not so much components as instances of the universe. Intrinsically dimensionless, their centres coincided with their circumferences. Conversely, since the universe was an infinite, indivisible (atomus) sphere, its centre was omnipresent. Both were absolute physical monads, indivisible unities, the centres and circumferences of which coincided. They differed inasmuch as the maximum was the “unfolding” of the minimum and a minimum was the “enfolding” of the maximum.