Say a person from a long time ago is alive today and you are talking to them. What do you think they are most surprised or shocked about, and how do you explain modern technology to them?

I’ve always thought about this. When I was younger I would pretend Laura Ingalls was standing around talking to me and I was trying to explain the stuff around us and what it did. It could be anyone, fictional or not, and I’m thinking “a long time ago” means before 1920 or something like that.