Our perception of crowding is affected not only by space but by smell and sound, and even more importantly, temperature and humidity. A crowded, hot room is much less bearable than the same number of people in the same size cool room. There is a time element as well to social density . Spending a large part of the day in a large group is wearing, whether in a school or family gathering. Plants and animals require tending.
Fluorescent lighting is cost effective, uniform lighting results in maximum flexibility.
Too often the tradeoffs don't take into account equally important concerns - appreciation for the rich stimulating nature of children and the importance of beauty in our lives. There go the grown-ups To the office, To the store, Subway rush, Traffic crush, Hurry, scurry, Worry, flurry. No wonder Grownups Don't grow up Any more. It takes a lot Of slow To grow. Trees make the world a proper place.