Silly. Given the laws of physics and the incredible distances to the nearest stars, no living biological or functioning mechanical entity can reach earth. Not to say aliens don’t exist somewhere in the universe, but humans will never meet them. Conceivable however they may one day answer the radio signals sent in analog for the last 110 years and in digital form the last fifty. Those signals by now may have reached a cognizant alien civilization who has sent an reply.
“Given the laws of physics and the incredible distances to the nearest stars, no living biological or functioning mechanical entity can reach earth”
Based upon “physics” as we understand them. There is more that we don’t know than we do.
chances are slim. As of October 2005, astronomers have been able to detect the presence of planets around only 28 G-type stars (including Sol) — or around 5.5 percent — of those 511 stars located within 100 light-years of Earth. so, 28 chances.
Generation ship.