We are reaching deep within ourselves to adjust the master knob. We are messing with our source code, including the code that grows our brains and makes our minds. Gene splicing, genetic engineering, and gene therapy have given our minds direct control of our genes, ending a four-billion-year hegemony of Darwinian evolution. Now the inheritance of acquired and desirable traits in human lines is possible. The technium will be completely liberated from the tyranny of slow-moving DNA. The consequences of this new symbiotic evolution are so immense that they silence us.