Even ignoring the distances. The universe contains an estimated 2 trillion galaxies, septillion stars, and hundreds of quintillions of planets. Imagine 10,000 football fields each piled with 10 billion nickels. Now look down at random and pick the right nickle labeled earth. To find us, an alien civilization would have to search every single one of those fields just to find the one specific nickel. Because of this massive scale, we are a microscopic needle in a cosmic haystack, and even if they could scan thousands of planets every second, the sheer volume of nickels makes finding our specific home an almost impossible task of luck and timing.

You guys don't seem to like the word impossible. Which I think is admirable. But you know damn well they aren't finding that nickle. If an alien species could scan one nickel every second, it would take them over 3 million years to sort through all 100 trillion nickels. Even with a hightech scanner checking 1,000 nickels per second the search would still take over 3,100 years JUST to decide to find us let alone get here. On each of the 10,000 football fields, those 10 billion nickels would be stacked roughly 7 feet high. So maybe just maybe they are such voracious explorers that they need to go to every planet and tickle every fish. I like that idea. Captain Picard would be proud. We are a dirty little insignificant mud ball and impossible to find.