Eh, the ocean is just moisture on the outside of the rock, it seems like a big deal to us because the rock itself is so enormous we just forget its there. There

Eh, the ocean is just moisture on the outside of the rock, it seems like a big deal to us because the rock itself is so enormous we just forget its there. There is so much rock that just by existing it exerts a powerful force on us all the time and we just don't even think about that. It's so enormous that we don't know for sure what's inside it. It's very hot in there, and radioactive, and generally hostile to life as we know it, but we've barely scratched the surface, we haven't really tunnelled much deeper into the rock than the thin layer of moisture you're making a big deal about, which is essentially nothing - a few kilometers. The rock is like twelve thousand kilometres across.