These 3D printed homes can be constructed for $4,000 - Business Insider

These 3D printed homes can be constructed for $4,000 - Business Insider: 
"Following is a transcript of the video.
A home like this can be built in less than 24 hours at a cost of only $4,000. 
The secret? 
3D printing...
...This prototype house was built in Austin, TX. 
The home measures 650 square feet. 
Mortar was printed layer by layer. 
Human workers installed windows, doors, plumbing, and electrical systems...
Read all.
Evan Loomis: Our first product is a 3D printer that can print a"