The fundamental driver behind Moore&#x27;s Law is shrinking the circuits. The problem is that the circuits are made up of atoms that deliver electrons, and electrical circuits fundamentally <i>cannot</i> go smaller than a single atom, because electricity is movement of electrons between atoms.<p>We could, in theory, use other technology (some sort of photon-based computer?) to get smaller (and therefore faster) computers, but that wouldn&#x27;t have the Moore&#x27;s law mechanism.