Contour Crafting

what about the foundations?

The monetary system will work as a barrier to all of the positive things that technology have to offer, we need a resource based system. Check out the Venus Project.

This will simply push more work into the service sector, the number of jobs will not change.

People in CBS homes have no problem with it.

"This will never happen because of the powerful labour unions [etc.]"

There is no legal recourse that will allow them to stop it.

The labor unions are already holding us back. If it was about employment why don't we get rid of all caterpillar machines and have everyone dig with shovels, or better yet TEASPOONS, that would create a lot of employment

House produced with contour crafting will not be built within this century.

Um, rapid layered prototyping anyone? Look it up, considering that it takes about an hour when i use these machines to make a 10cm x 10cm polymer part, i doubt the 24h claim is true.

The machine you use is a small machine laying down submillimetre layers. This would be a very large machine laying down multicentimetre layers. Two different things entirely. Note that even his miniature prototype does 10 cm x 10 cm in a lot less than an hour.

Also, even the small machine you use will get faster as technology improves.  Remember that the first home printers took a long time to print a single page... in low-resolution dot matrix... with track feed on the paper. A good typist on a manual typewriter could do it faster and prettier. I dare any typist to take on my ink jet, and it isn't even top of the line.