P-waves travel through vapor so what SciPop calls the "liquid outer core," can actually be open space. Jesus called it a "great gulf," in the parable of the rich man and Lazarus.
July 9th
March 1st
In the atheist human origins narrative (SciPop) there's no hell, or a great gulf of open space inside the Earth, because it's trying to be a logical antidote to guilt, the fear of judgment, and eternal torment.