A classified program is not evidence of extraterrestrial technology

This may sound obvious, but I think it gets lost surprisingly often in UAP discussions. The existence of a classified aerospace or intelligence program establishes that a classified aerospace or intelligence program exists. It does not, by itself, establish: extraterrestrial technology recovered non-human vehicles reverse engineering exotic propulsion non-human intelligence The same applies in the other direction. The absence of publicly available evidence does not prove that such things do n...