The first cyborgs will wear upper face-covering helmets, but mostly spend their days in swivel chairs.
They may look like Spectran guards in 'Battle of the Planets'.
Power users of the future will have IMAX-sized control screens with vast layered menus that will take years to perfect, representing all their knowledge and all human knowledge in a single super-fractal.
These may be the Final Men, the summit of human progress, our last bow before the machines enter the stage.
All it will take is one more interface breakthrough.
People can read faster than they can listen, but they still talk faster than they can type.
Perhaps keyboards could finally be replaced with voice controls or expression-reading face scanners.
So that's my theory: what's holding us back is not chip speed but interface friction. That's where the research should be focused.
It could be the solution to the problems of education, poverty, tribal conflicts.
The Long Pause that started around the Millennium will finally end.
Then long-term planning will become useless. Don't worry, that won't happen for at least another decade.
We'll know the change has begun when cities start becoming obsolete.