Yeah? And what are they doing? Why are they here? And they're invisible?! Wow, I didn't know there were invisible aliens (or maybe you're going with the Carl Sagan 3-D creature visiting a 2-D world bit?).
But ok, let's assume there are invisible (or extra-dimensional) aliens here. Clearly, they are so advanced that there's nothing I (or anyone else) could do about them. So until they decide they want to show themselves, ask some questions, or round us all up as guests (or food!) at their next intergalactic barbecue, there isn't much point in my worrying or losing sleep over them, is there?
I like that these aliens are so smart that these same creatures don’t know that their running lights are on(see “Arizona Lights”)
Mack's work and his career survived an attempt by the Harvard Medical School to revoke his tenure. The committee formed to revoke his tenure couldn't find one case wherein he had reached an incorrect conclusion, had misled a patient, or had performed his duties in an unprofessional manner.
This was the first time in Harvard's history that a tenured professor was subjected to such an investigation.
Here's what Mack concluded about the abductions (in a 1996 interview with PBS):
"There are aspects of this which I believe we are justified in taking quite literally. That is, UFOs are, in fact, observed, filmed on camera at the same time that people are having their abduction experiences....It's both literally, physically happening to a degree; and it's also some kind of psychological, spiritual experience occurring and originating perhaps in another dimension."
There isn’t much point in my worrying or losing sleep over them, is there?
The problem we have is if they are here, they will be running intel ops, and recruiting agents within our government. That needs attention, and to be addressed, and we need to get smart people looking at the problem.
Destruction is always easier than creation. Between that, and the way really intelligent and creative people can come up with things, it is possible the issue might have some sort of fix, if it even is a problem.
It is important, if it is a thing, and indeed, we do not even know that yet. It could be a psyop.
It bears investigation, and we should all be pushing for full disclosure, even if the chances of getting it are small.