> But getting back to the thought experiment it may ultimately even be the case that widespread rehabilitation is impossible.
And yet Norway manages a recidivism rate of 20% [1], by starting from the premise that rehabilitation is the point of incarceration; I'd certainly call it "widespread" to rehabilitate 80% of prisoners!
Also, I disagree strongly that the logical extreme of "some people are incapable of exercising full agency" is "free will doesn't exist at all, because biochemical determinism". This is a textbook example of the slippery slope fallacy. The law already recognizes and accommodates the possibility of the former, both in cases of permanent disability and of temporary incapability. One of its main tools for doing so is consultation with experts in psychology, which also means that we can refine legal application here as our understanding of psychology improves.
Moreover, "all behaviours are driven entirely and completely by chemical and electrical processes..." does not imply that free will doesn't exist! After all, it's pretty well demonstrated (through transcranial stimulation studies, cognitive behavioural therapy, more recent psychedelic studies on MDMA, etc.) that we can profoundly alter those chemical and electrical processes ourselves. Perhaps the better conclusion is that "free will" is merely our ability to alter our own biochemical state (where "merely" is doing a lot of heavy lifting here!)
And yet Norway manages a recidivism rate of 20% [1], by starting from the premise that rehabilitation is the point of incarceration; I'd certainly call it "widespread" to rehabilitate 80% of prisoners!
Also, I disagree strongly that the logical extreme of "some people are incapable of exercising full agency" is "free will doesn't exist at all, because biochemical determinism". This is a textbook example of the slippery slope fallacy. The law already recognizes and accommodates the possibility of the former, both in cases of permanent disability and of temporary incapability. One of its main tools for doing so is consultation with experts in psychology, which also means that we can refine legal application here as our understanding of psychology improves.
Moreover, "all behaviours are driven entirely and completely by chemical and electrical processes..." does not imply that free will doesn't exist! After all, it's pretty well demonstrated (through transcranial stimulation studies, cognitive behavioural therapy, more recent psychedelic studies on MDMA, etc.) that we can profoundly alter those chemical and electrical processes ourselves. Perhaps the better conclusion is that "free will" is merely our ability to alter our own biochemical state (where "merely" is doing a lot of heavy lifting here!)
[1] https://en.wikipedia.org/wiki/Incarceration_in_Norway