I'm somewhat disappointed that the aliens failed to show up. The rational part of me knows that Aliens won't arrive, especially not in a 2000 mile long ship over the skies of Alabama. I was just hoping in the deepest darkest part of me that it would turn out to be real. It would be super awesome if true.
It would be the first collective undeniable proof that everyone's problems are trivial.
Wars would stop. Religion becomes trivial. Maybe people will finally start helping other people in a semi-unrealistic-utopian state.
The aliens could tell us why we are here. Maybe they have some secret knowledge on science and philosophy.