 We're all, of course, familiar with the mail and postal delivery, and it's been part of everyone's life for forever. We just don't even think about it much anymore. So it's the institution of a new service or a upgraded service like parcel delivery that we take for granted. We don't think anything about our Amazon packages coming from the post office today. But back then, it was brand new to people, and it's interesting to see how they wanted to use this service, what they used it for. It was brand new to them, and they had no guidance or regulation.