hierarchy
Excursus: Homage to the Square^3
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.
The brilliance of notion
This, I think, is the brilliance of Notion, and what makes it one of the best examples of “fidelity to digital information” that I’ve come across. The structure of the app reflects the structure of the web itself: digital content is purposefully formatted, like semantic HTML elements, and exists in a hierarchical structure (directories on the web, nested pages in Notion), yet can be linked and referenced to create a complex network of information. And pages in Notion reveal the structure of the information: when nesting a page within a page, the child page always displays on the parent page. There’s no way to create a child page that doesn’t display on a parent page, no way to obscure the structure of the information. The semantic structure of Notion reflects the semantic structure of the web itself.
Separation and connection in all things
Truchet's approach was more topological than geometric, and the qualitative aspects of pattern take priority over the metric ones. His principles provide a kind of metaphor for the hierarchy of separation and connection in all things.
A Reflection of the Truth
The need to record
With collecting comes the need to record. A specimen without a label is simply a (sometimes) pretty object. Without its associated data it is scientifically worthless.
Mental infrastructure
The diary provides the mental infrastructure that stimulates the mind to remember.
Scientific writing
What Mick Southern taught me was both the imperative to and the means of writing scientific prose—“if it’s not published it’s not done,” as a later adviser put it. Mock showed me that the rather dry technical requirements of scientific writing did not necessarily mean that elegance, humor, and even wit need be excluded from the scientists’ products.
A three-layered process of documentation
A three-layered process of documentation:
(1) First, there is the field notebook. This is where the actual numbers are recorded, together with passing observations relevant to the interpretation of these numbers.
Paper is still proving more durable than electronic data.
(2) The journal is a parallel record to that of the notebook—a daily account of events, thoughts, and observations.
(3) Last of the three strata, then, are the publications. Traditionally, in science, these are articles in academic journals leavened with chapters in books. To be successful, a young scientist need aspire to no more than these two forms of output together with their oral versions at interminable conferences and meetings of learned societies.
There came a time in my scientific development, however, when other forms of publication became important: magazines articles, and writing books.
Incidental details
In these journals lay the incidental details by which a book can be differentiated from a set of scientific articles. Such incidental details can become ends in themselves.
Memory prompts
Journals are memory prompts and perhaps capture exquisite (and not so exquisite) moments of experience.