3D Printing

3D Printing could allow for many wondrous things. Right now it costs a lot to even buy the printer. But the more advanced it gets, and the cheaper it is to make lie everything eventually comes to, it could truly revolutionize many things.

Right now it can print up everything from ceramics to chocolates. But it could one day even print things lie food items and organs. I am not sure how safe that would be, yet the possibilities are endless.