What was the fundamental premise of the geocentric model proposed by philosophers like Aristotle?

Answer

The Earth was the stationary center surrounded by nested, perfect, crystalline spheres.

The geocentric model postulated that the Earth occupied the stationary center of the universe, with the stars and planets fixed upon a series of nested, perfect crystalline spheres rotating around it.

What was the fundamental premise of the geocentric model proposed by philosophers like Aristotle?
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