Crowdsourcing Landscape Perceptions to Validate Land Cover Classifications

"If every object and event in the world were taken as distinct and unique-a thing in itself unrelated to anything else-our perception of the world would disintegrate into complete meaninglessness. The purpose of classification is to give order to the thing we experience." Of all the countless possible ways of dividing entities of the world into categories, why do members of a culture use some groupings and not use others? What is it about the nature of the human mind and the way that it interacts with the nature of the world that gives rise to the categories that are used?-Malt 1995