Applejack: "What? We've always been that advanced."
[Points out the window, where a futuristic city dominates this alternate Equestria's landscape, complete with traffic jams of flying cars and spaceships lifting off to pony extrasolar colonies. Sweet Apple Acres itself is a sub-urban farming complex made of a dozen climate domes and futuristic storage silos]
For some reason, I imagine Applebloom being gifted, and she built all of that stuff. AJ and Granny act as Body Guards while Big Mac does the heavy lifting + assistance with a grasp on what AB wants done.