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
Sleepers A Poem by Nick Trombley m o t i o n l e s s m o t i o n l s e s m o t i o n s l e s m o t i o s n l e s m o t i s o n l e s m o t s i o n l e s m o s t i o n l e s m s o t i o n l e s s m o t i o n l e s s o m t i o n l e s s o m t i n o l e s s o m t n i o l e s s o m n t i o l e s s o m n t o i l e s s o m n o t i l e s s o m n o t l i e s s o m n o l t i e s s o m n o l i t e s Concrete poetry sleepeuphony