The whole first chapter of Brave New World comes to mind as well... "Bokanovsky's Process"... x-ray, and alcohol to clones of the "worker class" to make them s

The whole first chapter of Brave New World comes to mind as well... "Bokanovsky's Process"... x-ray, and alcohol to clones of the "worker class" to make them slow and stupid to do your bidding. https://www.huxley.net/bnw/one.html https://www.huxley.net/bnw/one.html