Yes but 20 years ago we had this:

The computers now are not comparable with the one from 20 years ago, unthinkable even.
And the computers from 20 years in the future will be unthinkably fast as well, so I guess blocks of 8.2 gb will not be a problem.
I wonder. The laptop I'm using to type this on is seven years old. It still runs the most up to date video and photo programs that I ask of it and the spec is only a few % off what you'd buy now, albeit for less.
Consumer computing machinery seems to be becoming smaller and less energy intensive but relatively static in terms of specs.
As ever it's bandwidth that'll be the bitch. My broadband hasn't had any type of upgrade in well over a decade. I'm sure it'll keep up in a few megacities but outside those places progress is going to lag big time.