The idea is for each want to be like a self contained unit. In search, that's all engineers. But in some other business, like my aditional video business, it was like a combination of engineering and marketing people and people working the studios. So but you have all the resources you need. You don't have these dependencies that basly slow you down. This is work that's below the tip of the iceberg of where amazon really put a lot of effort into,. How can you still grow and be as nimble and agile as s were when we started out? And it's not easy. But no, it only gets harder. So you may as well start now.