It seems pretty obvious that personal computers (not workstations) are going the way of the typewriter right now. Most people just don't need a computer when they have a smartphone.
The PC can be dated back 1975. But even in 2000, only 51% of US households had a personal computer. Not even 20 years later, it sure looks like the PC is going the way of the calculator and typewriter.
The first modern smartphone can be dated back to 1996, but it wasn't until 2013 that 50% of US adults had one.
Two year later, in late 2015, mobile web traffic had already overtaken desktop.
By 2033, I would be surprised if we don't have something challenging the smartphone. And the technology is probably around already.
These technologies seem to have about a 40-50 year life cycle. The first half of the life-cycle is the stage it takes to get to 50% saturation. Then the next third of the stage they dominate. The final third of the stage, they phase out to a niche market.
Sure, the smartphone is the bees knees today. But, really, is it? You've got to carry it with you everywhere you go. What if you just had a contact you kept over your eye at all times? What if you just had something you kept tucked behind your ear at all times?
How often do you REALLY need that screen? Remember, when the iPhone came out -- most people were thinking -- who's going to buy a smartphone without a freaking keyboard? Within literally 2 years, Blackberry's stock had dropped like 70%. Within 5 years, it was on the brink of bankruptcy.
And before that, when the first Palm came out in 1996 -- how many people do you think REALLY envisioned the smartphones we have today dominating web traffic and starting to encroach on the work station?