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 surface defines the boundary of a region or area, and the space that is enclosed or surrounded by this surface is the inside, existing within a bounded space.
External reference — all senses of the word “inside” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.
Trace. Question. Emerge.