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Real freedom for all turtles in Sugarscape? - Presses universitaires ...

Real freedom for all turtles in Sugarscape? - Presses universitaires ...

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138A r g u i n g a b o u t j u s t i c eone’s whole life is calculated as an aggregation of the set of (spatiotempor<strong>all</strong>yspecific) actions one is free (at the beg<strong>in</strong>n<strong>in</strong>g of one’s life) toper<strong>for</strong>m. On the end-state conception of ‘<strong>freedom</strong> over whole lives’, bycontrast, we need to consider each and every one of the different amounts of<strong>freedom</strong> possessed at various moments extend<strong>in</strong>g over a s<strong>in</strong>gle life.When we aggregate over the (spatio-tempor<strong>all</strong>y specific) actions a person isfree at time t to per<strong>for</strong>m, we produce a judgement of the degree of over<strong>all</strong><strong>freedom</strong> enjoyed by that person at time t. Both of the above conceptions of‘<strong>freedom</strong> over whole lives’ aggregate over whole lives <strong>in</strong> the sense ofaggregat<strong>in</strong>g over available actions. It is also conceivable, however, that onemight aggregate over the degrees of <strong>freedom</strong> possessed at various timesdur<strong>in</strong>g a person’s life. C<strong>all</strong> an aggregative end-state conception of ‘<strong>freedom</strong>over whole lives’ a conception accord<strong>in</strong>g to which the concern <strong>for</strong> a person’s<strong>freedom</strong> ‘over her whole life’ amounts to a concern <strong>for</strong> the sum or the averageof <strong>all</strong> the degrees of <strong>freedom</strong> possessed by her at various given juncturesextend<strong>in</strong>g over her whole life. This conception co<strong>in</strong>cides with what DennisMcKerlie and others have c<strong>all</strong>ed a ‘complete lives view’. 3 But an end-stateconception of ‘<strong>freedom</strong> over whole lives’ might be aggregative or nonaggregative<strong>in</strong> the above sense, <strong>for</strong> one can still be said to be concerned withthe <strong>freedom</strong> people enjoy ‘over their whole lives’ if one says, <strong>for</strong> example,that a person has a right, at any one time <strong>in</strong> her life, to enjoy a degree of<strong>freedom</strong> that is equal to the <strong>freedom</strong> enjoyed by others at that same time.(The latter conception co<strong>in</strong>cides with what McKerlie c<strong>all</strong>s the ‘simultaneoussegments view’.) The start<strong>in</strong>g-gate conception, on the other hand, isnecessarily non-aggregative with respect to tempor<strong>all</strong>y dist<strong>in</strong>ct degrees of<strong>freedom</strong>.Be<strong>for</strong>e proceed<strong>in</strong>g, we should make one more dist<strong>in</strong>ction with<strong>in</strong> the endstateconception. On a first version of the end-state conception, we divideeach life <strong>in</strong>to temporal segments, and we measure the <strong>freedom</strong> a personpossesses at the beg<strong>in</strong>n<strong>in</strong>g of each segment (c<strong>all</strong> this time t1) tak<strong>in</strong>g <strong>in</strong>toaccount only those action possibilities that are tempor<strong>all</strong>y located with<strong>in</strong>that same segment (that is, between t1, when the segment beg<strong>in</strong>s, and t2,when it ends). Thus, if t1 is the present and t2 is two hours later, then my<strong>freedom</strong> or un<strong>freedom</strong> at t1 to leave my study <strong>in</strong> three hours’ time will notshow up <strong>in</strong> our calculation of the degree of <strong>freedom</strong> I enjoy at t1. C<strong>all</strong> thisthe ‘discrete-segment’ version of the end-state conception. Alternatively, wemight measure the <strong>freedom</strong> I possess at t1 tak<strong>in</strong>g <strong>in</strong>to account <strong>all</strong> of thehypothetical actions that are tempor<strong>all</strong>y located with<strong>in</strong> the whole of myexpected lifetime subsequent to t1. In this case, my <strong>freedom</strong> at t1 to leave my3See McKerlie 1989, and subsequent articles.

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