The fact that we can’t identify the UAPs, in light of our own “limited scientific imagination,” should not be permitted to manipulate us into a false dilemma.
Mainstream scientists have been speculating about other-than-earthly intelligence for decades.
A mysterious oblong object, ‘Oumuamua, was observed a couple of years ago, transiting across the Solar System.
Here is a myth that comes not from the past but from the future.
Never fear: whatever our purely hypothetical response to a purely hypothetical event, it can be reconciled with evolution.