The Shallow Pond
If you would wade into a shallow pond to save a drowning child at minor cost to yourself, why wouldn't you donate a similar amount to save a child dying of a preventable disease far away?
Peter Singer posed this scenario in 1972 to argue that geographic distance is morally irrelevant to our obligations. The pond case, he claimed, shows we already accept the principle that we must prevent harm when we can do so cheaply. That principle has radical implications for how affluent people should spend their money.
Singer, P. (1972). Famine, Affluence, and Morality. Philosophy & Public Affairs, 1(3), 229–243.
The case
You are walking past a shallow pond. A small child has fallen in and is drowning. You can wade in and save the child at trivial cost: ruined shoes, a soaked jacket, arriving late to wherever you were going.
Almost everyone agrees you must save the child. The cost to you is negligible. The cost of inaction is a child's death.
Singer's move is simple: now replace the pond with a wire transfer. An effective charity can save a child's life for a few hundred dollars. The cost to you is the same order of magnitude as the ruined shoes. The outcome, a child living rather than dying, is identical. If you were obligated to wade in, you are obligated to donate.
What the argument demands
Singer is not arguing for moderate generosity. He is arguing that affluence creates obligation, and that most people in wealthy countries are failing to meet obligations they would readily endorse in the pond case.
The argument strips away every variable that might seem to matter: physical presence, visibility, immediacy. What remains is the bare structure: preventable death, low cost of prevention, no comparable sacrifice required. If those conditions hold, the obligation holds, regardless of how many miles separate you from the child.
This is closely related to the broader argument developed in The Drowning Child, which examines the structure of Singer's principle in full. The pond scenario is Singer's sharpest rhetorical tool: it catches people agreeing to a principle and then forces them to follow it to its conclusion.
Discussion questions
- Does distance change your moral obligation to help someone?
- Is there a principled way to limit how much you are obligated to sacrifice for strangers?
- Do you give to effective charities, and if not, why not?
Take it to the dinner table.
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