I think a better way to phrase this is - extraordinary claims require extraordinary evidence. Being present myself is a good litmus test, but humans are pretty

I think a better way to phrase this is - extraordinary claims require extraordinary evidence. Being present myself is a good litmus test, but humans are pretty unreliable. Having multiple corroborated credible sources would be much better. E.G. multiple radars detecting an object approaching, many videos from different view points, governments (who have access to better data sources) scrambling interceptors, defcon level rising, etc..