People occupy far more space then they need as this Roll-it experimental house begins to suggest. It is ludicrous to expect people to live in such a small place off course- but experiments like this tend to push the envelope and question the norm.
I think this would be a splendid experience for a holiday or a camping weekend. To change the function of the space- you just roll it- like a hamster would and you can transform from a bedroom to a dining/study table.
Courtesy of University of Karlsruhe