Do you believe there are species that have mastered FTL travel?

[gvstn]

44. I'd say most UFO's are optical illusions.

Just going on the basis that for something like Roswell to happen makes no sense. 4 lonely aliens travel here to observe or whatever purpose in a tiny ship with no preparations for an unintended crash landing, no sort of rescue or recovery? Doesn't make sense.

But on other species being more advanced than us and possibly not being limited by our understanding of physics, I completely agree. One has to consider that there may be many species that can perceive time, energy and matter in ways are five senses cannot. Our limited understanding of species is based on the illusion that one must have two eyes, a nose, mouth and eat to survive. Yes, it is mostly true for every species we have encountered but there are myriad possibilities. Seeing broader spectrums of light or even air molecules or sensing radiation or magnetism are possibilities that may give other species a head start on discovering new technologies.

It has only been a few years that scientists have allowed themselves to conjecture on what is on the "other side" of the known universe. What is our 13.7 billion year old space-time generating universe expanding into?