In this episode of pplpod, we explore Anaximander of Miletus, the ancient Greek thinker who made one of the boldest leaps in the history of human thought: the idea that Earth does not rest on anything at all. Born around 610 BC in the Ionian city of Miletus, Anaximander challenged a world still explained through myth, gods, and divine moods. Instead of seeing thunder as Zeus’s anger or the sea as Poseidon’s temper, he argued that nature worked through balance, geometry, and mechanical laws. The episode follows how he moved beyond his teacher Thales, who believed everything came from water, and proposed the apeiron, the boundless or indefinite source from which all opposing forces emerge and eventually return.

The episode also breaks down Anaximander’s strange but revolutionary cosmology. He imagined Earth as a floating cylinder sus ...