It will be very comfortable for one person to stay in a single bed but it will be less and less if there is another person stay in that bed. It could be similar to the earth nowadays. What will happened if there are 10 people in a single bed? Everybody can think about the result of too many people in a small place. The world population is increasing day by day but the side of the earth stills the same. There will be too many people on earth and people will be run out of resources, water, space and food. How and where can the next generation li ....