I come back to my earlier point about *why* would aliens have visited us?
Putting aside the ludicrously difficult technical challenges to be overcome in order to make such travel a reality (challenges by the way, which it may very well be *impossible* to overcome, no matter how intelligent and sophisticated a civilization may be). Anyway, putting that aside and assuming these aliens *could* come, then why *would* they?
There are perhaps 1 trillion planets in our own galaxy, so why pick ours? And there's perhaps 200 billion galaxies - maybe as many as a trillion of those as well. So out of the 1,000,000,000,000,000,000,000,000 planets, why pick on ours to visit?
From the aliens' perspective, earth is absolutely, spectacularly uninteresting and not in any shape or form, worth the effort of visiting. To anyone more than 100 light years away, it is a small, very dull, very boring planet with no intelligent life on it. They'd have ZERO reason to visit. And the chance of them just stumbling across Earth by random chance whilst roaming around, are so remotely unlikely as to be effectively impossible. That is why we've never been visited.
I read somewhere on a misheard lyrics site or something that someone had thought it was 'I'm a lethal alien'There have been aliens about ever since 87 when Sting told us us about them ; )
No, that was Harold Shipman.I read somewhere on a misheard lyrics site or something that someone had thought it was 'I'm a lethal alien'
I get what you are saying, but you have to differentiate between on the one hand what we consider might conceivably be possible, albeit we don't have the technology yet. And on the other hand what we cannot conceive of how it could be possible, even if we did have the technology.See, for me this is just a 2020 version of that New York Times page.
It might seem like that now but I’d imagine the more technology and our understand improves that this would no longer be the case.
Imagine the possibility in 1920 of humans visiting the moon, sending probes out to asteroids in mid flight and beaming back pictures, or even sending a probe out to take pictures of Pluto. Completely ridiculous and unthinkable. Impossible.
But why choose Earth? Anyone more than 100 light years away, has no idea Earth has any life on it.Zero reason to visit? Interesting.
If only there was evidence of people from a planet planning to visit another planet in order to see what was going on and improve their understanding of the universe even if it was just in the hope of finding rocks or microbes.
But why choose Earth? Anyone more than 100 light years away, has no idea Earth has any life on it.