Bamaro, I find the meme with Scotty you posted funny, coming from a show that changed the laws of physics plenty to suite the story.
To assume that we understand everything about physics shows you how naive and self centered we are as a species. In reality, we don't even 100% understand the laws we have discovered, much less the laws we have not yet discovered. There is plenty of room in physics for new discoveries that would make things that are unthinkable to us now seem possible.
I 100% believe that we are not alone in the universe. I 100% believe that this planet has been visited by a being from another planet. I 100% believe that irrefutable evidence will be discovered within our or our kids lifetime.
As Carl Sagan wrote in Contact:
“The universe is a pretty big place. If it's just us, seems like an awful waste of space.”