Dr. Mack may be able to credibly comment on False Memory Syndrome and hallucinations, but is completely unqualified to discuss or opine on the real science of the possibility or probability of otherwise undetectable interstellar travel.
The Catholic Church doesn’t take a position on UFOs and the existence of extraterrestrial life/intelligence, leaving it entirely up to the lesser sciences to figure out.
Can we please keep this thread on the higher topic? There are other forums for politics, science, “weird”, “conspiracy”, “UFOs”, etc.