Originally Posted by gornyhuy

Just as it is an almost mathematical certainty that many many life-bearing planets exist out there, it is also mathematically very unfeasible that there are technological societies with either space travel or ultra-long-distance communications capabilities within communiations or travel range of us during the same time window. (assuming that super-light travel or communications are not possible)

In other words - mathematically we are almost certain to miss each other by a long time and a long distance.