http://www.youtube.com/watch?v=VjgidAICoQI This guy claims the Earth is growing and the world's oceans are only about 70 million years old (there were isolated seas before this but not huge vast oceans like today). I don't know much of anything about plate tectonics or about the possibility of a planet growing (it makes sense that the energy from the sun we convert to matter would eventually cause growth but I didn't think it would be THAT fast). Is this theory valid? If it is than wouldn't that mean that dinosaurs had to deal with only half the gravity of modern man? Anywayz, please discuss!