The problem with trees Many systems are organized hierarchically. The CERNDOC documentation system is an example, as is the Unix file system, and the VMS/HELP system. A tree has the practical advantage of giving every node a unique name. However, it does not allow the system to model the real world. For example, in a hierarchical HELP system such as VMS/HELP, one often gets to a lead on a tree such as: HELP COMPILER SOURCE_FORMAT PRAGMAS DEFAULTS only to find a reference to another leaf: Please see HELP COMPILER COMMAND OPTIONS DEFAULTS PRAGMAS and it is necessary to leave the system and re-enter it. What was needed was a link from one node to another, because in this case the information was not naturally organized into a tree. Tim Berners-Lee, Seeing With Fresh Eyes A City Is Not a Tree hierarchywww
Cool URIs don't change An Essay by Tim Berners-Lee www.w3.org What makes a cool URI? A cool URI is one which does not change. What sorts of URI change? URIs don't change: people change them. The User Interface of URLs www
Tendrils of Mess in our Brains An Essay by Sarah Perry www.ribbonfarm.com Show image 0 Show image 1 A ruin and a mess. Watts observes that elements of the natural world – clouds, foam on water, the stars, human beings – are not messes, though the nature of their order remains inscrutable, and Watts doesn’t try to pin down its precise nature. Mess seems to be somehow a property perceptible only in the presence of human artifacts. Is this the result of some kind of aesthetic original sin on the part of humans, uncanny beings severed from the holiness of Nature? I hope not. “Humans are bad” is a boring answer. natureorderchaosaesthetics