But there's one fundamental truth about URLs: there is a single owner of a URL that decides what content appears at any particular address. So it's less a stre

But there's one fundamental truth about URLs: there is a single owner of a URL that decides what content appears at any particular address. So it's less a street address and more of a mobile phone number. Your grand should probably understand that metaphor better since I'm sure she's had multiple experiences with phone numbers changing hands over the years. And called people on their cell phones while that person is in different places. Or had different people answer the same number if the owner of the phone has entrusted the phone to another person or maybe even forwarded their number temporarily.