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.
The process of obtaining something by utilizing the symbolic representation of value, which is established through the exchange of goods and services within a societal system, thereby leveraging the fundamental aspect of trade that arises from this understanding of economy.
External reference — all senses of the word “buy” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.