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 Wind-Up Bird and Tuesday's Women A Short Story from The Elephant Vanishes by Haruki Murakami Who I was supposed to beQuittingA regular wind-up toy world this is
Who I was supposed to be Probably, the seed of a schism had been there all along, however microscopic. But in time the gap widened, eventually taking me out of sight of who I was supposed to be. In terms of the solar system, if you will, I should by now have reached somewhere between Saturn and Uranus. A little bit farther and I ought to be seeing Pluto. And beyond that—let’s see—was there anything after that?
Quitting But stay on I didn’t. I don’t know exactly why I up and quit. Didn’t even have any clear goals or prospects of what to do after quitting.
A regular wind-up toy world this is A regular wind-up toy world this is, I think. Once a day the wind-up bird has to come and wind the springs of this world. life