You don't want to punish the first actor's family because that is disutility to them as well as, or instead of, the actor and their happiness counts in the society's utility as well as that of the murder victim. You could just execute/imprison the two remaining actors on the assumption that (a) that will deter similar schemes and (b) they are "would be murders".

Brent

On 4/27/2015 4:42 PM, Dennis Ochei wrote:
Right, but *who* to punish in order to deter is dependent on these questions of identity. Suppose there are three actors who are willing to do this delayed duplication murder suicide scheme. Furthermore, they don't care what happens to their duplicate. (Perhaps they think of him as someone else) However, each have a family member that the care about deeply. You tell the first that his duplicate will be punished if he commits his crime. He doesn't care. You then say you will transfer the punishment onto his family member. This would deter him, but he doesn't believe you are actually so utilitarian and so he carries out his plans. Now, there are still two would be murderers. Do you punish the first man's family member in order to prove you mean business, deterring the remaining actors?

On purely utilitarian grounds, there is just as much disutility generated when you punish the first actor's duplicate as when you punish the first actor's family member. Furthermore, unless we reolve this question of identity who this disutility is doled out to doesn't matter as long as it serves its deterrent purpose.

On Monday, April 27, 2015, meekerdb <[email protected] <mailto:[email protected]>> wrote:

    You make a rule about punishing people that will deter them from committing 
crimes
    in a way that maximizes satisfaction in the community.  I'm not sure what 
rules that
    is, but it doesn't necessarily have to solve some philosophical problem of 
personal
    identity.

    In your example, suppose society said, "No we won't punish him."  Then 
people might
    be tempted to use this as a way of killing someone they hate.  So society 
would
    probably say, "Yes, we'll punish him...and any additional copies of him 
too."

    Brent

    On 4/27/2015 1:58 PM, Jason Resch wrote:
    What if you step into a delayed duplication machine, and the first one out 
goes and
    commits murder at a later time, and then commits suicide, later the delayed
    duplicate of you emerges. Do we imprison them, or would that be punishing 
them for
    a "pre-crime"?

    Jason

    On Thu, Apr 23, 2015 at 7:19 PM, LizR <[email protected]
    <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote:

        You should both go to jail, on the basis that both copies of you had 
the same
        consciousness as the person who committed the murder, and therefore you 
are
        both equally responsible (leaving aside considerations of free will etc)

        And (this is the clincher) you are both equally a danger to society, 
having had
        your psychopathic tendencies duplicated means you're twice as much of a 
danger
        as you were when there was only one of you.

        QED, "You're nicked, sunshine."


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