3D printing is upon us, but scientists at MIT are already working on 4D, in which objects assemble themselves. From BBC: “At the TED conference in Los Angeles, architect and computer scientist Skylar Tibbits showed how the process allows objects to self-assemble.

It could be used to install objects in hard-to-reach places such as underground water pipes, he suggested.

It might also herald an age of self-assembling furniture, said experts.”