This site is governed by three organizing principles.
The first, clusters of conversation, suggests a likely subject for the post. However, a post may participate simultaneously in more than one conversation.
The second, if form is your thing, gives you a hint at the length and format of the post. A post may only have one form.
The third, time, provides some insight into the sequential order in which the photos, writings and ideas were formed. That said, time is a malleable illusion which cannot always be trusted.