As with all hypotheses, it's not perfect. For example, if there's enough energy to liquefy the moon, there's enough energy to liquefy Earth's surface. But there is no evidence for large-scale magma seas in Earth's history. Also, the moon does have some volatile elements, like water, trapped in rock — but a giant-impact, giant-energy event should have gotten rid of those.

The AI Scientist Generates its First Peer-Reviewed Scientific Publication