more from this thinker     |     more from this text

Single Idea 21591

[filed under theme 7. Existence / D. Theories of Reality / 10. Vagueness / c. Vagueness as ignorance ]

Full Idea

My thesis is that vagueness is an epistemic phenomenon. In cases of unclarity, statements remain true or false, but speakers of the language have no way of knowing which. Higher-order vagueness consists in ignorance about ignorance.

Gist of Idea

Vagueness is epistemic. Statements are true or false, but we often don't know which

Source

Timothy Williamson (Vagueness [1994], Intro)

Book Ref

Williamson,Timothy: 'Vagueness' [Routledge 1996], p.3

A Reaction

He has plumped for the intuitively least plausible theory. It means that a hair dropping out of someone's head triggers a situation where they are 'bald', but none of us know when that was. And Rembrandt became 'old' in an instant.

The 14 ideas with the same theme [vagueness arising from our imprecise knowledge]:

12516 Obscure simple ideas result from poor senses, brief impressions, or poor memory [Locke]
12517 Ideas are uncertain when they are unnamed, because too close to other ideas [Locke]
23542 Identifying vagueness with ignorance is the common mistake of confusing symptoms with cause [Fine,K]
9044 If someone is borderline tall, no further information is likely to resolve the question [Keefe/Smith]
9048 The simplest approach, that vagueness is just ignorance, retains classical logic and semantics [Keefe/Smith]
9055 The epistemic view of vagueness must explain why we don't know the predicate boundary [Keefe/Smith]
6863 Close to conceptual boundaries judgement is too unreliable to give knowledge [Williamson]
21591 Vagueness is epistemic. Statements are true or false, but we often don't know which [Williamson]
21619 If a heap has a real boundary, omniscient speakers would agree where it is [Williamson]
21620 The epistemic view says that the essence of vagueness is ignorance [Williamson]
21622 If there is a true borderline of which we are ignorant, this drives a wedge between meaning and use [Williamson]
9120 Vagueness in a concept is its indiscriminability from other possible concepts [Williamson]
16226 Epistemic vagueness seems right in the case of persons [Hawley]
9116 Vague words have hidden boundaries [Sorensen]