Every manufactured object has a shape — not its design, but the geography of how it is made. Trace four very different things from raw material to finished good and four distinct patterns appear. Each hides its chokepoint somewhere different, and that is the whole point: to know where a product is vulnerable, you have to know its shape.
A supply chain's shape tells you where it breaks. The web breaks if any one specialist is cut off — which is why a crisis over Taiwan would freeze the whole electronics world, even though Taiwan is only one node of many. The funnel breaks at the single country that owns the middle: you can mine your own lithium and still be unable to use it. The relay doesn't so much break as drift — the work migrates to wherever is cheapest next, which is why garment-making keeps moving, from China to Bangladesh to, perhaps, Africa. And the contest breaks along a geopolitical fault line that both sides can see coming.
Read the four together and one country keeps reappearing, but never in the same place. China is the final assembler of the phone, the midstream monopoly of the battery, the cloth-maker of the shirt, and one of the two poles of the robot — and, quietly, the rare-earth and refining chokepoint inside nearly all of them. The same nation occupies a different square on each map, which is exactly why "decoupling" means something different for every product.
That is what this atlas, and the sourcing work behind it, is for: not a list of factories, but a map of where things really come from — and where, on the day something goes wrong, the whole chain will be waiting.