i am chatting with my best friend, who is many miles away in singapore. SARS is in the air, and I wonder if this is one of those things which will trim the world's population in a large way. it could be nature's way of course-correcting. Historically, diseases have regularly killed humankind, and checked population growth. for the past 150 years or so, the advances in medicine seemed to have broken this pattern, but could this be another sign of Nature's tenacity?