Sitting here knowing we have a helicopter and a land rover on Mars it doesn't feel like it's entirely impossible for an alien craft to be here, looking at us.
I can't make the leap to believe without doubt there is, or even to believe there probably is. But it is not impossible. We've already proved it's not, and we're not really all that smart.
Space is really big. The difference in effort between getting an oversized RC car to Mars and getting a huge supermaneuverable space-and-aircraft to the nearest habitable planet is about the same as walking down tree driveway to get your paper and… well, getting a huge supermaneuverable space-and-aircraft to the nearest habitable planet.
Then doing it over and over just to play mind games with the primitive apes on the planet while somehow evading anything resembling a decent camera or photographer?
I’m not going to say it’s strictly impossible. But it sure as hell isn’t plausible.
Anyone on Mars would have very clearly seen the Rover landing and known exactly what it was and where it was coming from. They also didn't arrive in Mars from the opposite end of the Galaxy, they arrived from the next planet over.
Most importantly, no one on Mars would think that the rover or helicopter are defying theaws of physics, bending space time or anything like that, which are real claims made by army personnel about the objects seen in some of these videos.
Yup, that's kind of where I am at. I think I lean more towards "this definitely isn't aliens", but if it's aliens then I definitely think these are unmanned drones keeping an eye on us.
I can't make the leap to believe without doubt there is, or even to believe there probably is. But it is not impossible. We've already proved it's not, and we're not really all that smart.