For every grain of sand on the planet is a sun. Each sun has a solar system. It's hard to believe that we are the only planet capable of sustaining life.

I believe to a degree but i don't think they are more advanced then us.
Or we could be the exception. The right circumstances alligned to create life.

I do find it hard to believe that if intelligent life has visited our planet that they would travel all this way only to anal probe us.