Oddbean new post about login | logout I too doubt the hollow earth idea, but for sure there are zones that go deep below the surface. Officially they've drilled for about 11 or 12 kilometers, right? That's peanuts compared to the diameter of this planet.
indeed, and it's not certain exactly how big the supercritical metal core is, i think that it may be a lot smaller due to the fact it's effectively in a weird quantum state like frozen but actually blazing hot but at the same time so high pressure it is like its frozen