| > had to spawn pretty near our solar system Why do you believe that our current understanding of physics is the final one? Let me propose a thought experiment. Let’s just say for the sake of argument that humanity has survived 100,000 years into the future. Now, let’s put you in a time machine and fast forward you to that distant future. Would you be surprised to learn that relativity, and the limits it imposes, are viewed by those future humans as anachronistic and silly? Barely remembered artifacts of humanity’s Stupid Ages? That new discoveries were made over those thousand centuries, discoveries that we 21st century humans can only vaguely begin to comprehend? Because you raised my biggest problem with modern cosmology: it’s arrogant assumption that Einstein is the end. But more importantly, that evidence indicating that relativity is not in fact the end — such as UAPs — is completely disregarded. And the reason it is disregarded? Because relativity is the end! It’s circular reasoning at its absolute worst. |
It doesn't have to be final, it just has to be reasonably descriptive of reality.
Even if we review our understanding, the universe is still a massive place and humanity's existence a mere blip. It becomes more about statistics and probability than physics, but yeah, our understanding of physics also makes ETs visiting Earth very unlikely.
If you mean to say "a major revision of physics would make it more feasible", I don't know. Maybe? Or maybe even less feasible! We have to approach this rationally, and so far reason and evidence both lean to "extremely unlikely".
> Let me propose a thought experiment [...] Would you be surprised to learn that relativity, and the limits it imposes, are viewed by those future humans as anachronistic and silly?
As a thought experiment it's a decent piece of science fiction, but as any sort of serious thought it seems like begging the question to me.