I think lasers are pretty wack when you think about them through this lens. A small, wand-like object in your hand can make light appear from seemingly nowhere. If it’s powerful enough it can set things on fire or blind people. Not to mention larger ones like laser cutters or the LLD, used to destroy missiles midflight. Thats sure to blow some feudal peasant minds
People in the past had a lot of weird technologies, trickery and magician stage plays. I don’t think a laser pointer would be out of the ordinary, unless you’d try to explain what it actually is. I can imagine people would just assume it’s a trick.
Now, a cutting laser… That could be interesting.
But I wonder how people in the past would react to stuff like audio and video recording and immediate playback. I always thought that is something that screams “impossible” unless you’re already familiar with it.