When I first saw a 3D printer in action I said it was like a Replicator 1.0. I told my kids that I wanted to get a 3D printer and use it to make more 3D printers!I would love to see one work! It’s like star Treks replicators.
I think that the drone technology is pretty futuristic. I'm waiting for the day when I can order food delivery online and it arrives via autonomous drone. The Boston Dynamics dog robot is also pretty amazing, not quite the "robot of the future" but getting much closer. When they have one large and dexterous enough to do laundry, dishes and other household chores then it'll be the robot sci-fi has promised us.