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.
Belts are fastening devices that require tools for creation and attachment because tools provide the means to shape and mold materials into functional forms.
External reference — all senses of the word “belt” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.