I’m not sure trying to disprove known physics is not insane. I’m not saying (but I don’t know) that things can’t take advantage of new discoveries, but if they do on this planet, it’s by people, not space aliens.
Even if an alien civilization could instantly transport themselves millions of light years in an instant, there is still a vanishingly small chance we would be found.
The answer is that if it’s here on earth, it’s us.
The answer is that if it’s here on earth, it’s us.
That brings to mind the old line in the Pogo comic: We have met the enemy and he is us.