You're misreading my statement. Part of the solution is betterment, but it's by far not the only part. The second major goal of prison is punishment (nb: not re

You're misreading my statement. Part of the solution is betterment, but it's by far not the only part. The second major goal of prison is punishment (nb: not revenge), effectively deterrent. However, the punishment must be adequate to the crime committed and human. Making prison as cruel as possible does not serve that goal. The punishment consists in loosing your freedom, not in getting raped or tortured. Btw: In such a future you're describing we surely have ways of preventing crimes just as effective as the pill that turns a murderer into a good member of society.