While I have not done extensive research on this theory of Hollow Earth, I have the craziest thought that I cannot discount.

Earth has a lot of mysteries. Many were recorded. MANY of the many were not passed down. Why? Because there are many documents in the Vatacan! We are not educated on a certain story, being in the catacombs, whether it is not important or whether it could change our entire history as we know it.

There are things we don’t know, that is known.

Adolf Hitler: He was said to be in love with blonde people with blue eyes. An idea came to belief that there were mysterious beautiful blonde, blue-eyed beings settled in the Antarctica. Hitler, whether for whatever reason, sent an expedition to Antarctica. He got there by first going to Argentina, leaving many Nazi-bred settlers to La Cumbrecita, Argentina. This town, we’ll call “little Germany”, now inhabits over 1,300 Nazi descendant Germans today.

Operation High Jump: is an official US Mission, which led a team of US Navy boats to Antarctica. I did not do intensive research, though, I know this happened after Hitler’s death. Lt Richard E Byrd was tasked with flying around Antarctica. There are rumors that he found land there.

My belief: I do believe there is land in Antarctica. Whether a small amount of land like Australia, or a vast amount of land like Africa and Asia.

“Beyond Earth”: This land could be as vast as to house people if the poles keep melting! (Seriously. Geologically, Canada held huge glaciers before the Bering Strait. The Earth’s relation to the sun has shifted in a way that melted these glaciers since. If Antarctica held land in that same way, we could inhabit it). The creatures way far beyond the equator? Bizarre. The deer-like animals there jump. The birds have developed to not fly... yet the birds developed into fantastic swimmers! A highly aggressive Octopus attacked Russian explorers there a few years back. What other creatures can be there? Could there even be inhabitants there? A Homo Sapien-like inhabitant that evolved to live there, like Neanderthals, or a different evolution of homo-sapien tree?

Ultimately: What is the land beyond our understanding of Antarctica? May it be a large super continent? Maybe land in the form of islands. Or... the land there leads to an “underground” (In that instance, Neanderthals might actually be really intelligent cavemen by now. After all, the cavemen Caucasians of the Caucus Mountains evolved extremely well). Or! The Earth caves inward with “space” being a still, unclear, understanding of dark matter distorting our sense of visual vibrations. Our understanding of vibrations. Like a black hole? Or you know what, there are just rocks and ice in Antarctica.

TLDR: It is entirely possible that Earth has more land.

I do know this. The human race is going to discover more interesting creatures far beyond the equator.

Thank you for letting me post here. Hollow Earth is an entirely possible scenario. Though, I just believe the Earth has more land to explore, I allow a scenario of hollow-earth to live in my head, rent-free.