'All buildings are predictions.All predictions are wrong'.Stewart Brand,cynically,in How Buildings Learn:What Happens After They're Built(Penguin,1995)

A building's design is usually built upon what architects call a 'program' or an inventory of spaces.Program are built upon assumptions about populations and activities.Yet you cant predict church attendance or exactly what you'll be doing to reach them in a decade,anymore than you can know their ages,marital status or the ages of their children ahead of time.So,how many loaves  and fishes will we need for,say,500 people?-ar