Skip to main content
 

On vagueness, or, when is a heap of sand not a heap of sand? | Aeon Ideas

Vagueness isn’t a problem about logic; it’s a problem about knowledge. A statement can be true without your knowing that it is true. There really is a stage when you have a heap, you remove one grain, and you no longer have a heap. The trouble is that you have no way of recognising that stage when it arrives, so you don’t know at which point this happens.