Ethics and Values / Unit 2 Ethics 069 short lesson, about 20 seconds
The Is/Ought Gap
Captions available
The idea
The is/ought gap: no set of purely factual premises, by itself, entails a conclusion about what ought to be done.
In practice
Hume's point: from "the drug ends pain" alone, nothing follows about giving it — until a premise like "pain ought to be eased" joins the argument.
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