A good action is one which maximises the satisfaction of the preferences of all those involved.
Act utilitarianism
In any situation, you should do the action which would increase happiness to the greatest extent. (Bentham)
Rule utilitarianism
In any situation, you should follow the rule, that if everyone followed, would increase happiness to the greatest extent. (Mill)
Nozick's experience machine
imagines a hyper-realistic machine where you could be plugged in and would live a pleasurable life, experiencing everything as if it were real.
Many people would not go in the machine because they value things such as freedom and personal relationships.
Therefore hedonism and thus utilitarianism are false.
Fairness and individual liberty
Act utilitarianism can lead to counter-intuitive moral judgements.
E.g. enslaving a minority to aid the majority.
Tyranny of the majority
The potential of the majority using democracy to oppress others.
Mill argued that the only reason governments and other individuals should interfere in our lives is to prevent us causing harm to others. (Harm principle).
Problems with calculation
Where do consequences end when calculating the utility of an action?
E.g. saving a drowning boy who goes on to become a serial killer created more pain than pleasure in the long term.
If the moral worth of an act is tied to its consequences , then this has to be constantly revised and no 'final' value can be assigned.
Problems with calculation (Which beings to include)
P1: If only humans have moral status, there must be some special quality that all humans share.
P2: All human-specific possibilities for such a quality will be a quality that some humans lack e.g. intelligence.
P3: The only possible candidates will be candidates will be qualities that other animals have too.
C: Therefore we cannot argue that only humans have moral status.
Issues around partiality
Utilitarianism demands that we remain impartial when making moral decisions, only considering how much happiness is produced.
This is impractical as most people are likely to favour their friends and family.
Utilitarianism ignores the moral integrity of the individual
P1: Personal integrity requires that there are things (x) that you would not do.
P2: Using a utilitarian framework, a scenario can always be created whereby x is the right thing to do.
C: Therefore utilitarianism undermines our personal integrity
Utilitarianism ignores the intentions of the individual
E.g. someone finds the cure for cancer while trying to make a new poison to exterminate their enemies.
We intuitively believe that acts done from a good motive have more moral worth.
Utilitarianism on stealing
Act -stealing may be morally justified in some scenarios if it creates more pleasure than pain e.g. Robin Hood.
Rule - stealing is always wrong as obeying the law is a moral rule.
General rule - stealing is wrong as it tends to cause more pain than pleasure.
Utilitarianism on simulated killing
Act - the happiness produced from these entertainments generally outweighs the pain so they are morally good.
Rule - Although it is a lower pleasure, simulated killing is morally acceptable as people should be free to pursue whatever pleasures they choose.
Utilitarianism on eating animals
Act - Bentham included animals in his calculations because they feel pleasure and pain. It is hard to calculate whether the pleasure humans gain from eating animals outweighs the pain caused.
Preference - Although Singer values animals as sentient beings, he argues they do not have a conscious preference to stay alive so eating them is acceptable if the animals are treated humanely.
Utilitarianism on telling lies
Act - Lying is sometimes morally good when the pleasure created outweighs the pain.
Rule - The rule 'tell the truth' maximises utility so should be followed.
Preference - Most people have a preference to be told the truth so lying is generally wrong, unless the person would prefer to be lied to.