(via Shape-shifting home transforms throughout the year in response to changing temperatures | Daily Mail Online)
But as a design solution to the problem of dealing with weather and seasons, it's bonkers and terrible. Insulation (and say, double-glazed or triple-glazed windows) is a good partial solution towards both the problem of heat and the problem of cold. Heating and cooling systems do most of the rest. Am I seriously supposed to believe that moving a house every day, continuously throughout the day, takes less energy than cooling or heating a well-insulated non-moving house?
Plus, the unfolding system means this house takes up a tremendous amount of space relative to its internal square footage. You know what actually is an efficient, sustainable way to live? Multi-unit housing! Row houses are more efficient than detached! High rises even more efficient!
Also, you gotta make sure all human and pet inhabitants are away from any walls that'll squish together or any second-floor doorways that will soon open onto empty space instead of formerly adjacent rooms.