Product description Why waste years designing viruses for biological warfare when blind mutation and natural selection was all that was required? The theory was, they'd set up a few trillion copies of their system. The theory also included 520 people all sticking scrupulously to official procedure, day after day, month after month, without a moment of carelessness, laziness or forgetfulness. Apparently, nobody bothered to compute the probability of that or of finding wonder drugs.