Please replace me with a robot.

This is one of the coolest stories I have come across lately.

http://innovation.uk.msn.com/design/the-3d-printer-that-can-build-a-house-in-24-hours#scpshrjwfbs

One main reason I work in the decorative concrete industry is to create strong middle class jobs.  So, I find the the part of the article where they address the social concerns of innovation most interesting. The idea that a rising tide does anything other than raise all ships is ridiculous.  Any good tool frees us up to work more creatively and efficiently than before we had it.  I guess the only negative thing about innovation is that by removing the constraint, we may become lazy.  That is, if we don't have to work, some of us will not work.  Some of us work best when we are free, though.  Am I all alone caring about any of this though?