Philosophy of Science

On the Infinite, Universe, and Worlds

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Giordano Bruno

1584

On the Infinite, Universe, and Worlds is Bruno's most cosmologically daring work: a dialogue arguing that the universe is infinite, contains an infinite number of worlds, and has no fixed centre. Written in Italian and published in London in 1584, the work draws on Copernicus's heliocentrism but goes decisively beyond it — where Copernicus merely displaced the centre from the Earth to the Sun, Bruno abolished the centre altogether. Bruno argues that the infinity of the universe follows from the infinity of God: a finite universe would impose a limit on divine creative power. This universe is populated by innumerable worlds, many of them inhabited, each governed by the same natural laws. The work was revolutionary in its implications: it demolished the Aristotelian cosmos of concentric spheres, challenged the uniqueness of the Earth and the human, and laid conceptual groundwork for the infinite mechanistic universe of early modern science — and for the theological pluralism that would follow it.