Nearly all experts today believe the Moon was the result of a very early collision between a Mars-sized planet and the Earth.
Yes, you're right, no doubt about it -- but all those experts are dead wrong . That's based not merely on the implausibility of their model, but also on fossil evidence (there really is some) as well as isotope ratios from lunar surface samples (which are themselves, like the fossils, wrongly used to prop up their impact model). It's a little disorienting, I realize, considering what a deep interest I have in the consequences of impact. :')