*
If you study the question of organization, generally, you find that it is related to trees.
*
Let's say you want to organize all sorts of detailed information about a complex system, say, an organism. You might have assembled a great number of specific descriptions of specific parts, and functions, but how is it presented? As a long list, in no particular order, of, say, articles, each represented, perhaps, by some kind of name?
*
Never.
*
First you would described, or list, various major divisions of the body - the arms and legs, the torso, the head and neck ... but also maybe component systems ... the circulatory system, the digestive system, the endocrine system, the skeletomuscular system, and the nervous system. And then, in your description of each large system, you would reference components of that system, and interested readers could access, via those references, more detailed information about that particular component ... including listings of its components ...
*
But, the perplexity doesn't end, because quite often we find we are writing about some particular thing, which is part of something larger, which is part of something larger still ... we know that ... but it's still hard to say what exactly this thing we are discussing is a part of ... and harder still to say what that larger thing is a part of.
*
