Way ive understood alot of reverse engineering....we have probly had some type if advanced technology,schematic,or overall incredibly complex operating system to play with for about 70-100 years. No it may not be aliens, but we got a crap ton of nazi scientists and all the perversion that came along with their world altering knowledge. You take a downed craft with technology that almost seems like magic ...give the greatest minds several decades and....boom...iphones...bluetoothe...and aircraft capable of 90 degree turns at mach 10....wait and see...where is my tinfoil hat..i know its here somewhere