Total utilitarianism is a method of applying utilitarianism to a group to work out what the best set of outcomes would be. It assumes that the target utility is the maximum utility across the population based on adding all the separate utilities of each individual together.
The main problem for total utilitarianism is the "mere addition paradox", which argues that a likely outcome of following total utilitarianism is a future where there is a large number of people with very low utility values. Parfit terms this "the repugnant conclusion", believing it to be intuitively undesirable.
To survive the mere addition paradox with a consistent model of total utilitarianism, total utilitarians have two choices. They may either assert that higher utility living is on a completely different scale from, and thus incomparable to, the bottom levels of utility, or deny that there is anything wrong with the repugnant conclusion. (Although, Sikora argues that we may already be living within this minimal state. Particularly as quality of life measurements are generally relative and we cannot know how we would appear to a society with very high quality of life.)
Read more about this topic: Average And Total Utilitarianism
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