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Single Idea 21632

[catalogued under 9. Objects / E. Objects over Time / 8. Continuity of Rivers]

Full Idea

A river is not just an event. One would need to specify counterfactual as well as actual boundaries.

Gist of Idea

A river is not just event; it needs actual and counterfactual boundaries


Timothy Williamson (Vagueness [1994], 9.3)

A Reaction

In other words the same river can change its course a bit, but it can't head off in the opposite direction.

Book Reference

Williamson,Timothy: 'Vagueness' [Routledge 1996], p.264