> It's nowhere as ridiculous as Flat Earth. That's a pretty low bar. For starters what's the outside made out of if it's hollow that explains why, gravitation

> It's nowhere as ridiculous as Flat Earth. That's a pretty low bar. For starters what's the outside made out of if it's hollow that explains why, gravitationally, it appears not to be hollow. All known aspects of the moon are better explained by it not being hollow. Even if it turns out to be hollow, it's currently ridiculous to believe that given the current body of knowledge.