When I saw
this video, it was clear to me that what we are taught in the geography is utter bullshit and should not be taken seriously. It is a known historical fact that
no one has ever drilled deeper than 12 km. Thus, how on Earth can a scientist say what is inside Earth. Just because some places put out lava does not mean the whole Earth is filled by it. Those shit scientist really think people are that stupid that they believe just any ridiculous explanation they serve via the public education system.
Hyena, I'll be polite this time, but please listen to me. This is exactly the reason why people like me would get irritated by you.
There is a very simple physical reason why that is happening in that video. There is also a very simple reason why it does not happen in planet formation (hint: the ratio of centrifugal force and self-gravitating force is different). The problem is that you don't understand that, and immediately conclude that all of physics is wrong. Why don't you instead ask someone who understands physics to explain why we do not think the Earth is hollow? Then people like me are much more inclined to reasonable conversation... with your attitude, however, you cannot expect people to take you seriously.