Great point, Steve, human memory is very fallible, mine certainly included.
I've had an interest in UFOs and other anomalous phenomena for decades. My position is open-minded-but-sceptical. Certainly, the situation with UFOs (UAPs, if you prefer) is extremely tangled, with folklore, psychology, cultural context, physics, politics, and loads of other stuff all mixed up together. Basically, nothing about the subject can be relied upon.
The fleeting, unpredictable, ephemeral, subjective nature of the phenomenon makes it almost impossible to analyse scientifically.
@Electrodynamic says he thinks all UFOs are man-made, and he uses the term "craft". But his is just a belief, and no more valid than any other belief, such as they are aliens from another planet; they are humans from the distant future; aliens from a parallel universe; glitches in the brain induced by natural electrical phenomena; elaborated or false memories; mistaken identity of planes or satellites; residents of a hollow earth; mental fugue states; angels and signs from God, and so on. It's also likely that multiple, completely different, phenomena are mixed in to the pot, to complicate things further.
One possible argument against
@Electrodynamic's position is that UFO-like phenomena have been reported for a few centuries, possibly longer, which makes it less likely they are products of human technology. But we cannot be certain we are talking about the same thing, so this does not prove
@Electrodynamic's opinion to be wrong.
The whole thing is fascinating, but there are very few answers to be found.