Comment by krferriter

> - there exist technologies on our planet that human engineers and physicists do not know the underlying principles of their operation

> - there exist unknown physical principles and forces that a party other than the USG has harnessed and implemented for advanced flight capability

These certainly have not been shown to be true. People have told stories alleging these are true, but they have for decades failed to substantiate them with evidence. All they've been able to do is tell wild fantasy stories and occasionally get a video or photo released that is laughably bad and does not support the story at all.

Which keeps happening, but the people who believe in alien visitation to Earth never seem to care that the alleged "evidence" keeps falling apart when it's actually released and scrutinized. They just move on to hyping up the next alleged evidence. It's honestly a cult dynamic at play here. Always reference to secret evidence and no epistemic adjustment after repeated cases of what they believed was evidence for their belief turning out to not be evidence for their belief. They never learn from all the past times they got scammed.