The fact that aliens are able to travel distances of hundreds of light-years to visit planets in other solar systems or galaxies is an emphatic proof of the supremacy of their technologies. It is, hence, always been an endeavor of humans to do reverse engineering of the alien technology to get an understanding of the same and use that technology in the betterment of mankind.
While many things had been known to mankind before, the jump in technology during the 1950s and 60s surely tells us that there was some guidance that led man to come up with technological advancements like never before. Alien theorists believe that this jump in technology is basically a product of conducting reverser engineering on the alleged crashed alien spaceships which are rumored to have been captured in 1947 in Roswell, New Mexico and many other places in the next few years. Here are some evidences that reverse engineering of alien technology is indeed a reality.
There have been many other instances of technological advancements which have happened only after an alleged capturing of UFOs by governments of different countries at different point of times.