The best piece of technology that would be awesome would be HOLOGRAMS.  The reasons that holograms would be awesome is because you could call someone and be right next to them.  Another reason is that you can be in a movie and you could walk around certain actors that you like. Play a video game and you would be the main character. You could have dance parties in your own room with people on the phone or something. That is why we should make holograms.