The dystopian future is towers of sleep boxes that the poor rent to sleep 8 hours a day (so 3 persons per day). Something in the Matrix style. The sleep boxes are poorly built, but thanks to the laws limiting the supply, the workers have to pay thru the nose to rent those boxes. These towers are built on compact lots of land and around it there are 1 sq mi lots with proper houses for the rich 0.01%. This is essentially the exponential growth turning inwards.
