URLs (uniform resource locator) cannot ever last forever, as it's a location and locations can't last forever :)
URIs however, can be made to last forever! Also comes with the added benefit that if you somehow integrate content-addressing into the identifier, you'll also be able to safely fetch it from any computer, hostile or not.
URIs however, can be made to last forever! Also comes with the added benefit that if you somehow integrate content-addressing into the identifier, you'll also be able to safely fetch it from any computer, hostile or not.