So here we are, with a global economy that’s very cost-efficient but not resilient. It’s wonderful that Walmart has worked out how to order a new tube of toothpaste from China the second one is pulled off a shelf in Topeka, KS. But that means there is no deep storage to draw upon in times of disruption to the status quo. No warehouses stocked with 12 months of future goods. Just a brilliantly-complicated supply chain thousands of miles long that has to work perfectly for things to keep running.