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
A Slow Boat to China A Short Story from The Elephant Vanishes by Haruki Murakami Can you even call it memory?Never any place I was meant to be
Can you even call it memory? My recall is a damn sight short of total. It’s so unreliable that I sometimes think I’m trying to prove something by it. But what would I be proving? Especially since inexactness is not exactly the sort of thing you can prove with any accuracy. Anyway—or rather, that being the case—my memory can be impressively iffy. I get things the wrong way around, fabrication filters into fact, sometimes my own eyewitness account interchanges with somebody else’s. At which point, can you even call it memory any more? memory
Never any place I was meant to be Supposing I found myself chasing another fly ball and ran head-on into a basketball backboard, supposing I woke up once again lying under an arbor with a baseball glove under my head, what words of wisdom could this man of thirty-odd years bring himself to utter? Maybe something like: This is no place for me. This was never any place I was meant to be. melancholywisdomage