Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
A bluff is a steep, high bank or cliff overlooking water or lower terrain, often formed by erosion or tectonic processes, resulting from the interaction of geological patterns and the underlying land.
External reference — all senses of the word “bluff” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.