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The Box That Killed The Dome
If you remove the lid of a pressurized box of air inside of a vacuum chamber without gravity, the air will violently rush out of the box to fill the vacuum. The air pressure will then be the same at every point in the chamber. It will be the same at the top, bottom, middle, and at all sides. Just like the air pressure in your car tires or a balloon or a SCUBA tank.
This thought experiment debunks the entire flat Earth model. If the air does not cling to the bottom of the chamber, then it certainly would not cling to the bottom of flat Earth. If the air does not leave any part of the chamber still in vacuum, then it certainly would not leave any part of flat Earth in vacuum. And if the air creates equal pressure at all points in the chamber, then certainly the air creates equal pressure at all points in the flat Earth dome.
Yet there is no denying that air thins as you climb in altitude. At 100,000 feet, somewhere near the top of the theorized dome, the air pressure is so low that it is effectively a vacuum.
This alone debunks all of flat Earth.
Note: no flerfer has ever provided a workable answer to this. They immediately sperg out if you even mention it, and rant and rave that the box thought experiment actually kills the globe. The only way they can do this, of course, is to deny gravity. But if gravity doesn't exist then the dome is just as dead. And if it does exist, the globe model works, while the dome remains...dead.
