Some “ufologists” say our sky is rife with massive space ships moving at incredible speeds and burning patches in Mrs. O’Leary’s backyard. I’ve spent thousands of hours flying and rare is the UFO I can’t easily recognize as an FO. I don’t discount that it COULD happen, I’m just saying it HASN’T happened.
Aliens are another kettle of little green fish. Given the infinite number of places for life, I find it nearly impossible to believe we are the only ones. I’m reasonably confident some weird little microbe lives under a rock on Rigel-12. But intelligent life? I’m not so sure.
But who knows? I’m intelligent alien agnostic.