I noticed that, one episode they are using old projection screens, and another there are movie theaters in color. They has trains pulled by other ponies, then coal, and the words “cannon” and “bullet”, plus the existence of a party tank kind of suggest the existence of not only gunpowder but also heavy artillery. Really by this point the idea of Applejack jumping over fences in a truck, or even more terrifyingly Pinkie Pie driving a car wouldn’t be too out of place.
Since an absolute headcannon is pretty much impossible about Equestrian tech, I’m just rolling with the concepts that the LKU is more technologically advanced, if only because of the existence of runes.
i keep thinking Equestria is near the 50’s.
But Young Cherilee tell me that in that universe. 80’s culture was the ten years ago culture (ten years from first chapter)