114 SOCIAL SCIENTIST This choice between the total possibility and the desirable possi. bility will be made on the basis of social choice. Thus, technology responding directly to social discipline will be used exclusively for survival on the planet taking into consideration both natural and cultural demands. The pictures of Ultimate City are symbols of the ideas of a Marxist culture and should be seen as images. These images are presented as symbols of the last urban settlement where nature has already started taking over the surface of the land that was once covered with the legacy of capitalist cities. The brick and concrete and miles of roads are now covered with dense forests, scented flowers, the sound of birds and the hush of breeze through branches of shrubs. There are beautiful sunsets every evening (because the smoke of the factories is gone) and every inhabitant is in a joyous state as he relaxes and lets his mind wander through space and time and through the voids of the universe which are no longer a mystery.