Do you believe there is other intelligent life in distant galaxies? If no, why not? If yes, do you believe this is something to be feared and avoided or actively sought out?
Could there be? Certainly. Have we seen any sign of it, or any reason to believe that it is there? Not yet.
I remember seeing a poster in one of my high school science classrooms that said something like, “Either we are alone in the universe, or we are not. Both possibilities are overwhelming.” A quick Google search determines that it’s a paraphrase of Arthur C. Clarke, though there seems to be some disagreement as to his original phrasing, and whether the two ideas were overwhelming, staggering, terrifying, etc. However it was phrased, I think it’s a fitting summary.