I think science fiction has over the years raised our expectations of other intelligent lifeforms ( if they exist that is...)
I do not believe we will ever come in contact with any aliens. Do I have any strong and valid backing for this belief? Nope! Then again, neither do you...
What you all hold are mere theories and conspiracies. I won't say its not entirely possible that other intelligent lifeforms exist; I'm just saying we won't be meeting them any time soon. Its a waste of efforts to look for them.
Convince me otherwise and I will come camp with you outside...waiting for the next alien invasion.
I agree completely that we most probably won't ever come into contact with other intelligent life forms, though as big as the universe is the odds of at least one other solar system out there harboring life is very plausible.