I'm none of those things! Just repeating what I researched and there isn't a lot out there. The mathematical chances of life out there somewhere is very high, and intelligent life still high, but for it to find us and stay hidden is near zero. Think about how expensive it would be to send our ships to alien worlds... We would plunder them for their gold and platinum and oil and lithium, and give them plastic trinkets in return. It's what we do historically, and hiding is weirdly unprofitable. The Prime Directive us fiction! so this kind of thing makes sense to me logically. Either it's a random chance some vessel used our sun as a gravity boost or someone out there heard us and sent a probe, being careful to maneuver it do it didn't point right back where they came from. Probably dozens more possibilities more likely I can't think of because I'm not that smart... But what I know is it wasn't a physics defying comet that was born yesterday from nothingness as the natural explanations would have us believe.