[Brett66]

Some of their predictions are accurate, many of the inaccurate predictions result from the inability to discern a market for a product.

What in the world would I need "air walls" for? They didn't think people of the future would need any privacy?

Another interesting prediction:

The status symbol of the year 2000 will be the home computer help, which will help mother tend the children, cook the meals and issue reminders of appointments.

That was essentially correct, but they completely underestimated the demand for porn. ;)

[JoeSixPack1]

"air walls" = insulated concrete forms made of styrofoam encasements currently have an R-50 insulation factor and can withstand a 400 MPH wind!

Standard concrete block or insulated wood frame walls have an R-8 insulation factor.

It might not be pure air, but styrofoam is as close as we got so far.

http://www.icfweb.com/