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
The Last Lawn of the Afternoon A Short Story from The Elephant Vanishes by Haruki Murakami She was wanting to break it off
She was wanting to break it off One summer morning, the beginning of July, I got this long letter from my girlfriend, and in it she’d written that she wanted to break up with me. I’ve always felt close to you, and I still like you even now, and I’m sure that from here on I’ll continue to…et cetera, et cetera. In short, she was wanting to break it off. She had found herself a new boyfriend. I hung my head and smoked six cigarettes, went outside and drank a can of beer, came back in and smoked another cigarette. Then I took three HB pencils I had on my desk and snapped them in half. It wasn’t that I was angry, really. I just didn’t know what to do. In the end, I merely changed clothes and headed off to work. And for a while there, everyone within shouting distance was commenting on my suddenly “outgoing disposition”. What is it about life? ending