To prove it in purity The series of photos of the 1959 model ends or stops with the photograph in which Kiesler triumphantly shows us the shell of his house like the remains of a creature taken from the seabed, a kind of Moby Dick harpooned and finally captured after the obsessive pursuit of a project that has taken up ten years of the life of the architect. "I think that everybody has only one basic creative idea and no matter how he is driven off, you will find that he always comes back to it until he has a chance to prove it in purity, or die with the idea unrealized." — Frederick Kiesler Smiljan Radić, Some Remains of My Heroes Found Scattered Across a Vacant Lot creativitylifeobsessionpassion
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