ratstsrub

Even today, after two decades of research, the mechanism behind the formation of so-called “metahumans” is unclear. There is no single mutation that causes the condition, and in many cases, multiple gene loci appear to be affected. What is clear, however, is that the nuclear radiation that leads to these mutations is a danger to all mankind. Even if only one in ten thousand exposed individuals develop superpowers, the selection pressure could well be enough to drive non-powered humans to extinction. The only solution is control of the metahuman population.
—From the notes of Professor Gloria Becker

From a book I'm reading.

Oh no, look out, everybody in the future will have brown hair! My god, non brown hair people will be driven to extinction!!

Is what I thought about this.