A few reasons for happened so are- 1. Companies cut or delayed new orders in early 2020 for everything. Then ran down existing inventories to nothin over the summer. 2. China’s extended shutdown created a massive disruption for ocean shipping. Leaving a lot of empty containers in the wrong spot. 3. Consumers shifted to buying stuff instead of services. Stuff takes up space in containers and warehouses. 4. Demand came back sooner and more than expected across multiple industries. This also takes time to move upstream. 5. Covid health rules and sick workers slowed down ocean container terminal operations. 5. Wave 1 created a lot of supply chain disruptions and delays, those extended lead times have been added into S&OP plans. 6. restocking low inventories, longer lead times, and general return of demand are crushing the global shipping industry. 7. there is no spare vessel capacity, terminals are maxed out, and empty containers are scarce or in the wrong place. so lead times grow again. More stuff must be ordered to keep inventory in transit.