Floating, Responsive 3D Holograms

Yes, holograms are a thing now.
Haven’t we had those for a while, you might ask? I seem to remember CNN going all-out during the 2008 election-coverage arms race when it beamed correspondent Jessica Yellin into Wolf Blitzer’s Situation Room.
And for that matter, didn’t Coachella holographically resurrect Tupac Shakur in 2012?
More information: http://www.nasdaq.com/article/fairy-lights-floating-responsive-3d-holograms-cm492607