A fun thought experiment is to realize that if the earths atmosphere were totally removed except for a cylinder that encircled your house and went into space, y

A fun thought experiment is to realize that if the earths atmosphere were totally removed except for a cylinder that encircled your house and went into space, you would feel physically the same. Just like in the water, in some sense the only thing air pressure cares about is how much air is directly on top of your head.