By Diane Mitchell Human beings like to believe that they are in control of their environment. They would be right to do so. After all, no other species on the face of the planet can affect changes in its environment to the same extent that humanity can, and there is no better reason to believe in something other than for that thing being believed in to be an objective reality. Now, there are some things that do not lend themselves well to human manipulation, like how people can just fall ill. But...