World model
Product chains — rock to finished good
Commodity balances — click for detail
"Years left" = known reserves ÷ current annual production — a static snapshot, not a forecast. Baselines ≈ USGS MCS, IEA, worldsteel, WNA (2025 data year).
Material chain — click a row to fly to its source
Numbered markers on the map are each material's example source. Real chains use many suppliers — these are documented representative sources, each with its own citation and confidence.
Trade routes are traced along real corridors: sea legs follow the global shipping-lane network (through Suez, Panama, and cape roundings); land legs follow road/rail corridors. Every quantity is a sourced estimate.