Tesla had designs for "UFO" technology before civilization entered into the 20th Century. Bottom line, if aliens can do it, so can we. And we've had the technology the entire time. Humans got lulled into complacency, as we were repeatedly told what a "genius" that Einstein guy was. Even though the belief in Einstein's theories retarded the progression of the entire field of physics, while each and every field of "science" was compartmentalized, selectively removing specific details to ensure no one would ever really see the absolute Truth. Many have since tried to explain, but the clowns fought back hard and continuously, making mush of the now permanently retarded humans' minds.
In a nut-shell, we've had the technology to build "flying saucers" long before the Roswell incident. So…