 Fourth, the extension of Rawls’s theory introduces some modification in the account of opportunity, but the modification is not inconsistent with the thrust of justice as fairness. Justice as fairness abstracts from health status differences in its assumption that agents are choosing principles to govern people who are fully functional over a normal lifespan. This simplification drew criticism from Arrow (1973) and later Sen (1980), for it means the method of judging inequality, the index of primary social goods, would fail to account for the inability of people in some health states to convert those goods into the same level of well-being as people functioning normally. Rawls’s (1971) notion of opportunity is primarily geared to the strategic importance of access to jobs and offices; health, viewed as normal functioning, clearly has a bearing on access to jobs and offices, but we also need a broader account of opportunity if we are to address the impact of health on other important aspects of life. In borrowing justification for a principle assuring fair equality of opportunity, then, and then using it to apply to a broader notion of opportunity, the argument involves a modification of Rawls’s own arguments. Nevertheless, he seems to have adopted this view of how to extend his theory (Rawls 1995: 184, n.14; Rawls 2001: 175, n.58).