bottom line I am convinced that aliens are and have been at least observing us for a long time. the universe is old. we are young in comparison. their could be civilizations that have been around 10-20x longer than us. probability says they're out there somewhere .
regardless if it comes to gettin on a ship and leaving to face complete and utter uncertainty. I say fu*k it and stay here to face the uncertainty that is death. don't trust no aleeeyunz son.
probability says there out there. I can agree with that. BUT, probability also says that the chances of earth being visited 0. It takes 150,000 years for light to travel from one end of our galaxy to the other. And the milky way is just one of atleast 500 BILLION galaxies. but y'all wanna believe that aliens can make that trip multiple times a year, every year, since whenever the first UFO sighting was.
Ask yourself this, if you had the impossible technology to travel these vast distances WHY would you do it. To cut up some cows? make pretty pictures in wheat fields? flash your sweet parking lights in the sky for a few minutes and then roll out?
sh*t, even us with the little technology we have don't actually go visit mars ourselves, we build robots to do it for us.
I think everybody is so busy trying to prove weather something is or isn't, that they forget to ask the bigger question. "Why would that make sense even if it was possible"