I do qa for headsets so uh... Imagine a painting that moves. Now imagine instead of seeing the world, there was a device that makes you only see those moving paintings. I make sure that device and the paintings work well together.
If anyone knows of any kind of animation technique from that era that would help with the description. But even flip books wouldn't be invented for like 150 more years so 🤷♀️ Maybe I could find a nice painting and give the person a bunch of mushrooms and be like "this but different"
I mean, they know what movement is and what real things look like when they move. I sure you could explain the concept of things on a screen moving to them.