The Survival Lottery
If killing one healthy person could save five dying patients by distributing their organs, and we accept organ donation, why don't we accept a lottery to select who gets killed?
John Harris proposed the survival lottery in 1975 not to endorse it, but to expose the inconsistency in our moral intuitions about killing and letting die. The argument is utilitarian in structure, but its real target is anyone who accepts transplantation logic while drawing the line at compulsory sacrifice.
Harris, J. (1975). The Survival Lottery. Philosophy, 50(191), 81–87.
The lottery
Suppose a hospital has five patients who will die without organ transplants. A healthy person, Y, could save all five if their heart, liver, kidneys, and lungs were distributed among them. Under the survival lottery, everyone in society is assigned a number. When multiple patients need organs and will die without them, the lottery selects a healthy person to be killed and harvested.
The arithmetic is utilitarian: one person dies so that five may live. Every healthy person accepts a small increase in their chance of being selected, in exchange for a large decrease in their chance of dying from organ failure. On expected value, the lottery benefits everyone.
Why almost everyone rejects it
The near-universal reaction is refusal. Harris anticipated the objections:
The most common: there is a morally decisive difference between killing and letting die. Harvesting Y is an act that causes death. Failing to harvest is an omission. Most moral frameworks, not just deontological ones, treat these asymmetrically.
The second objection: rights. Y has a right not to be killed, even to save five others. That right is not simply overridden by numbers. The five patients have no claim on Y's organs while Y is alive. A rights-based framework says no aggregate calculation can justify violating Y's body without consent.
Harris's response: if we grant that it is wrong to let five die when we could save them, we need to explain why the number five matters in the pond case but not in the lottery case. The inconsistency is harder to resolve than it looks.
What it actually reveals
The survival lottery is a stress test for moral consistency. It shows that most people's ethical commitments are not purely consequentialist. They treat the distinction between killing and letting die as load-bearing, and they treat individual rights as resistant to aggregation.
Identifying exactly where those intuitions come from, and whether they can be defended rather than merely asserted, turns out to be genuinely difficult. That is what Harris wanted to show. The lottery is a reductio that works by making you commit to a line you can't easily draw.
Discussion questions
- What makes killing a healthy person to save five so different from pulling the trolley lever?
- If the math is the same, where exactly does the moral distinction come from?
- Would you want to live in a world with the survival lottery?
Take it to the dinner table.
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