Question: with the world's advances in medicines and technology, we are able to keep many people alive who would have died in years gone by. This is, of course, wonderful when we look at it from a "life is all important" view point. BUT, what will happen in the world with more people? Where will the additional food and water come from? How can we sustain an increased population?
The toilet is a magnificent thing. Invented at the turn of the 19th century, the flush version has vastly improved human life. The toilet has been credited with adding a decade to our longevity. The sanitation system to which it is attached was voted the greatest medical advance in 150 years by readers of the British Medical Journal.