> The object is genuinely novel and unidentified by the observer, but actually not hostile. E.g. you are seeing this thing: https://en.wikipedia.org/wiki/Lockheed_F-117

I remember in the late 80s a lot of the UFO reports were triangular craft, and then the nighthawk was unveiled to the public, that's when I started to think maybe the are no aliens and we're just seeing advanced military tech