And that nikola tesla had a vision of something greater , or simply something else , when he invented the AC engine?
Well, Tesla was a complex and brilliant man so I have no idea what he was thinking when he dreamed up the AC motor. However, with regards to your initial statement about AC engines only working on earth -- I have to wonder why it is you would think that. The laws of physics governing the workings of an AC motor (Maxwell's electrodynamics) is universal everywhere in the Universe. An AC motor works on Andromeda galaxy in exactly the same way it would work on Earth given the same setup conditions. Best regards