I remain certain that we won't be seeing aliens in my lifetime anyway. Which is as long as I care about.

Nor will the the world end or runaway global warming end life as we know it. Jesus won't return, the rapture won't happen. Elvis is dead and we'll never find out what happened to Amelia Earhart, well ok maybe we will.:
We could be hit by a rock from space though. That at least is a possibility.
It is possible that we find proof that life exist out there or at least that is used to exist out there, Seti or microbes on comets, something like that.
It is also possible we find a way of travelling in space at close to light speed. I read about a possible propulsion system in Aviation Week and Space Technology some time ago.
But no aliens, of that I'm certain.
