Could you go to this extreme to downsize and save money?

Karen sent me this link and I thought it was just so interesting and inspiring. You have to watch this video about a family of FOUR downsizing to a 168 sq ft house, that's not a typo 168 sq ft, do you think you could do it? Doesn't it seem like we all just keep wanting to get larger and larger homes and then we fill it with more stuff so we think we need even larger, if you only had 168 sq ft you would really have a true sense of what "stuff" you really needed to live!!!!! Here's a link to highlights from the rest of the show, there is more about this family and another family who challenged themselves to not spend any money for an entire month!!!!