system
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human
Could the rings of a planet like Saturn eventually either all fall into the planet itself or compact themselves into a new moon?
gpt
> Could the rings of a planet like Saturn eventually either all fall into the planet itself...  

They can only do that if they lose enough angular momentum, which can only happen via friction. So yeah, over time they may thin out, but it seems there is not much friction between the objects in the ring happening, so it will be a very slow process. Some estimations say that the rings ar as old as the solar system itself, about 4,5 billion years. 

> ...or compact themselves into a new moon?  

This is almost certainly not happening. The rings are within the Roche limit, where tidal forces prevent the formation of bigger bodies. It is actually believed that the rings were formed from a moon that passed the limit and got completely disrupted by these forces.