never happen.
Futurists used to talk about whole house automation.
A CENTRAL COMPUTER in your house would fix your coffee, order your groceries,
download a newspaper, control the temp, etc.
What happened to that? Well, predictions about "smart" homes never figured that
processors would get so cheap that they would be in EVERYTHING, not the other way around.
We have a "smart house" now, BUT everything has its own processor.
Same with holograms.
You can get a pair of glasses that will put a 3-d image in front of you, like those old viewmaster thingies, gives the appearance of a 40in screen.
But the main thing that will supplant holograms is direct plug ins into the brain.
Your cell phone will be in your head basically, and so will everything else.
Control panels will pop up floating in space, you will control them by thought, and you will be able to transmit pictures to each other.
Eventually you will lay in a sarchopacus, and sensors EVERYWHERE will be able
to put you in a virtual universe.
Want a drink, it will pop into your hand.
For a more detailed explanation read the works of James P hogan