Coelux Srl, an Italian company, has developed a lighting system based on nano technology the appears to perfectly imitate a skylight.
This means that one can make a dingy sub subbasement appear as a garden patio. It means that the poor gopher in the middle of the largest cube-farm can keyboard in the sun — or something like it. It means that subway stations will lose their edginess.
Actually, one consequence that did not come to mind until watching the below video was the development of “groundscrapers” i.e. office and living space that extend deep into the ground rather than high into the sky.