system
Given the following post, respond as if you're commenting on Reddit:
human
If one were to build a giant metal ring around the equator, supported by metal beams, and then remove the support beams, what would happen?

I highly doubt the ring would float, but would it just tilt over and fall onto the surface of the Earth?
gpt
With a perfectly spherical, smooth earth, this would be a equilibrium position.  However, since there is no negative feedback as the ring moves around a bit it would be the same type of in-stability as a pencil standing on it's point.

Even in the perfect case of a spherical smooth earth, this would be no stability and the slightest movement (in any direction) would result in the ring collapsing down to earth at one point.