Not withstanding all the UFO crap that has been published over the last 61 years, the fact still remains that there has never been any undeniable proof that this backwater planet of ours has ever been visited by non-terrestrial entities.
So lets consider this. The Universe is about 14.7 billion years old. Our sun is a third generation star and is about 4.5 billion years old. It took the chemicals and elements created in the first and second generation stars to achieve life on Earth, Except for the artificially created heavy elements on the Periodic Table, all the rest were necessary for the creation of life. The fact that life evolved into an intelligent form (Check your "Beam me up, Scotty" jokes at the door) is, in all likelihood, a very, very rare event.
Yes, I do believe that other "thinking" critters exist in the Cosmos but someone (something?) has to be the first to take that tentative step away from its home planet and I believe that we could, as easily as any others, be the "FIRST". We are the ET's of our Solar System and possibly our Galaxy and even possibly the entire Universe.
I mean, lets face it, some has to be first and why not us?
Just something to ponder this weekend.
"Let's all be careful out there!"