It's probably a little crude to say, but the human race can be considered like a virus. Any other creature that expands from Africa into Europe, Asia, the Americas, Australia --- we would be killed off if it weren't for technology. A lot of babies that are born would not have had the chance to survive without machines and doctors hovering around them 24/7. Even just by cutting the world's population in half, starvation would diminish immensly. I mean, yes I'm glad that technology has elongated lives to the point where my baby cousins met their great-great grandmother before she died, but what the hell do you do when you're that old?