Or consider we've fucked up the climate change problem and Earth suffers from runaway global warming. We all die. 500 years from now, an alien probe from Proxima Centauri passes through the Solar System. The aliens would see Earth and wonder how a Venus-like planet formed in (what we call) a habitable zone. Maybe they'd end up reconsidering their models of planetary evolution ("Surely it couldn't be aliens", they'd say, "that's ridiculous! There's no proof of other life out there except our own!").
Maybe the wide-scale manipulation of what we today consider fundamental physics is possible. Surely, a lot of popularly accepted sci-fi technologies would be able to do that if one would follow them to their obvious conclusions at scale (one shovel can dig you a ditch; a thousand shovels will dig you a great canal). And if it is possible, what's to say it hasn't already happened?
Your comment reminded me of Author C. Clarke's third law:
3. Any sufficiently advanced technology is indistinguishable from magic.
So is Mars.
So what you are saying is that there is a chance Godlike beings with advanced mastery over physics could exist?