The Utility Monster
Imagine a being who gets vastly more pleasure from any resource than any human does: every meal is 1000x more enjoyable, every experience 1000x more vivid. Should society give it almost everything?
Robert Nozick invented the Utility Monster in 1974 as a reductio ad absurdum of utilitarianism. If we should maximize total utility, and this creature generates more utility per unit of resources than any human, strict utilitarian logic seems to demand we feed it at the expense of everyone else. Nozick thought this showed something was deeply wrong with pure consequentialism.
Nozick, R. (1974). Anarchy, State, and Utopia. Basic Books.
The trap
Utilitarianism says the right action is the one that maximizes overall wellbeing. Add up all the pleasure and subtract all the pain. Do what produces the most net good.
Now introduce an entity that generates 1,000 units of pleasure from a sandwich you'd only get 1 unit from. Strict utilitarian math says give the monster the sandwich. If the monster exists and can absorb resources this efficiently, the utilitarian optimum is to redirect most of society's output to the monster, leaving humans with just enough to survive.
Almost no one thinks this is the right answer.
What the monster is testing
Nozick's target isn't just utilitarianism. It's the idea that aggregation can justify anything. If you can always increase the total by concentrating resources in whoever gets the most from them, individual rights and equal dignity become negotiable.
The monster forces a choice: do you bite the bullet (maybe the math is right and we should feed the monster), or do you accept that maximizing aggregate outcomes can't be the whole story?
The distribution problem
The Utility Monster is a version of a broader challenge: any purely aggregative account of ethics has trouble explaining why distribution matters. Why not have one ecstatic billionaire and a billion people living on the edge of survival, if the total hedonic units come out higher?
Most ethical theories that take distribution seriously, Rawls being the prime example, do so precisely because they've noticed this problem.
The question that lingers
Do you think some people genuinely deserve more resources because they get more out of them? Or is that intuition the beginning of the Utility Monster?