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.
Deafness arises from the absence of the complex process of sound wave transmission through the interaction between the ear and the body, which is the fundamental mechanism of hearing.
External reference — all senses of the word “deaf” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.