Even at non-relativistic speeds self replicating robots could have visited every star system in the galaxy within a few tens of millions of years. We haven't seen any evidence.
Everyone has the most advanced cameras in history in their phones and there's exactly zero indisputable pictures of UFOs, ghosts, fairies, chupacabras, Nessie, Bigfoots, Yetis, and so on.
If aliens can travel even a light year, they almost certainly also have the technology to not crash.
Agree with everything you’re saying except the cameras in phones. Cameras in phones are advanced but most do not have kind of optical zoom. Try to take a picture of a plane flying overhead with your iPhone or a bird. It’s hard to get a clear photo of something so far away.
>Everyone has the most advanced cameras in history in their phones and there's exactly zero indisputable pictures of UFOs, ghosts, fairies, chupacabras, Nessie, Bigfoots, Yetis, and so on.
This is key in why I was much more optimistic of finding any of those paranormal items than I was 10 years ago. I hope I'm wrong.
There are zero indisputable photos of 99.9999999% of things that happen on earth. I mean, even if you have 10 separate people seeing the same thing and someone videoing, that's still disputable. You'd need a stadium of observers and several camera rigs before photo/video evidence would be the necessary level of "sure" to be considered indisputable when it comes to UFOs.
Even at non-relativistic speeds self replicating robots could have visited every star system in the galaxy within a few tens of millions of years. We haven't seen any evidence.
Everyone has the most advanced cameras in history in their phones and there's exactly zero indisputable pictures of UFOs, ghosts, fairies, chupacabras, Nessie, Bigfoots, Yetis, and so on.
If aliens can travel even a light year, they almost certainly also have the technology to not crash.