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The discovery of what is essentially a 3D version of graphene the 2D sheets of carbon through which electrons race at many times the speed at which they move through silicon promises exciting new things to come for the high-tech industry, including much faster transistors and far more compact storage devices.
Imagine a marriage of graphene and 3D printing. I was reading about this just this week. Its already being worked on.
With that sort of flexibility in terms our entire spacetime bubble could be said to be only two dimensional, or even one dimensional. Single atoms are three dimensional ... unless in a quantum super position.