I'm saying that placing your beliefs in the hands of a handful of people who claim to have left earth can be picked apart with basic problems like a perfect vacuum. What makes more sense, and what could be experimentally validated: 1. The earth has a pressure gradient of layers of gas, and gravity keeps those gasses from entirely escaping into space, which is a perfect vacuum. 2. The earth is a closed/contained system because that is the only way it could exist next to a vacuum. The first is a belief that cannot be experimentally validated and is never observed in any other instances, while the latter can be easily demonstrated. You cannot maintain pressure in an open system.