Ethics
In ethics, Smart was a defender of utilitarianism. Specifically, he defended "extreme", or act utilitarianism, as opposed to "restricted", or rule utilitarianism. The distinction between these two types of ethical theory is explained in his essay Extreme and Restricted Utilitarianism.
Smart gave two arguments against rule utilitarianism. According to the first, rule utilitarianism collapses into act utilitarianism because there is no adequate criterion on what can count as a "rule". According to the second, even if there were such a criterion, the rule utilitarian would be committed to the untenable position of preferring to follow a rule, even if it would be better if the rule were broken, which Smart called "superstitious rule worship".
Another aspect of Smart's ethical theory is his acceptance of a preference theory of well-being, which contrasts with the hedonism associated with "classical" utilitarians such as Jeremy Bentham. Smart's combination of the preference theory with consequentialism is sometimes called "preference utilitarianism".
Smart's arguments against rule utilitarianism have been very influential, contributing to a steady decline in its popularity among ethicists during the late 20th century. Worldwide, his defence of act utilitarianism and preference theory has been less prominent but has influenced philosophers who have worked or been educated in Australia, such as Frank Jackson, Philip Pettit, and Peter Singer.
One of Smart's two entries in the Philosophical Lexicon refers to his approach to the consequences of act utilitarianism: to "outsmart" an opponent is "to embrace the conclusion of one's opponent's reductio ad absurdum argument." This move is more commonly called "biting the bullet".
Read more about this topic: J. J. C. Smart
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