For 10 points, name this hypothesis that the use of language influences categories of thought.
Berlin and Kay attempted to refute this idea with their research into a universalist theory of colors. Preceded and influenced by the Weltanschauung ideas of Wilhelm von Humboldt, Steven Pinker ridiculed an alleged proof of this theory involving chemical workers who smoked in a room containing empty gasoline drums but not one containing filled gasoline drums. It was first applied to the (*) Hopi people's perception of time and the refuted example of Inuit words for snow. For 10 points, name this hypothesis that the use of language influences categories of thought.
Berlin and Kay attempted to refute this idea with their research into a universalist theory of colors.
{Sapir}-{Whorf} hypothesis [prompt on {linguistic relativity}; prompt on {linguistic determinism}]