Why is the Solar System Flat?

The video explains how the solar system formed from a nebulous cloud of gas and dust, coalescing into a flat disk due to gravity. It explores why many cosmic structures, like galaxies and black hole accretion disks, are flat, attributing this to collisions and the three-dimensional nature of space. The video contrasts this with four-dimensional space, where flatness doesn't occur due to the presence of two planes of rotation. This flatness is crucial for the formation of stars and planets.

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