The breakdown of global supply chains is well-known by now. Whether it’s finding groceries in your supermarket, buying a new car or buying appliances like dishwashers and refrigerators, goods are scarce. Also, deliveries take forever and choices are limited. Many people wonder why the problem isn’t going away. Here’s the answer: The supply chain is a complex dynamic system. When any complex system collapses, you can look for specific causes but that’s usually a waste of time. Systems collapse internally because they are too large and too interconnected and require too many energy inputs to keep going. Any specific cause...