The Contextual Vagueness Trap

How the meaning of 'true' changes based on the conversational environment is a slippery business, mostly because our language is packed with vague predicates. Words like 'tall' or 'expensive' refuse to hold still. Their truth conditions are entirely tethered to the features of whatever conversational room they happen to be sitting in at the moment.

This creates awkward territory in the margins. Every vague predicate has its borderline cases where judgment simply stalls out—like trying to classify a coffee blend priced squarely between what everyone agrees is cheap and what everyone agrees is expensive. You cannot point to a crisp boundary line because the line itself moves depending on who is talking and what they are comparing it to.

To make sense of this sliding scale, listeners rely on pragmatic enrichment. We constantly work to fill the gap between a sentence's literal, underdetermined meaning and what the speaker actually intends to convey, leaning heavily on shared knowledge and immediate context to bridge the distance. Meaning is so inherently tied to these human environments that stripping language of its situational, cultural, and linguistic surroundings—an act of decontextualization—turns out to be a fundamentally flawed enterprise.

This context-shifting behavior is not just an conversational quirk; it is a vital theoretical tool. Philosophers use contextualism to block sorites paradoxes, arguing that the content of vague expressions quietly shifts beneath our feet as we move from one setting to another. Even so, theorists still argue over the exact mechanics, divided over whether the actual content shifts or whether it is merely the truth value and assertability that changes from one room to the next, while some critics worry the whole approach stretches linguistic ambiguity further than it ought to go.

Yet this persistent slipperiness is often ignored in favor of convenience, particularly when it comes to the written word. We love the comforting fiction that printed documents exist in a context-free vacuum, a habit of mind frequently deployed simply to uphold the unyielding authority of text over the messy, situational interpretations of actual human beings.