Makes sense. You would probably need carbon nano-tubes, not easy to produce in real life, to handle the stress of the atmosphere, then add the temperature, I see your point. I'm a scuba diver, so I understand how fast pressures can increase the deeper you get into fluids, so I am surprised I didn't think of that before posting... I would like to see the "surface" deeper into the planet and have the atmosphere incredibly thick, I like the idea of imploding while getting deep. It may even be better than having a surface.