Links exist across a spectrum of novelty or surprisal from "perfectly predictable and uninteresting" to "completely incoherent".
TODO: Links in a random network have no meaning, links in a fully connected network
Strong links are predicatable. They offer little surprise or new information.
I want to show all of the thoughts and ideas connected to the thing I am writing about.
I link mainly for the benefit of the reader. That means that I tend to include links that are obvious to me.
"Weak social ties, it is argued, are responsible for the majority of the embeddedness and structure of social networks in society as well as the transmission of information through these networks." - Interpersonal ties on Wikipedia
"Specifically, more novel information flows to individuals through weak rather than strong ties. Because our close friends tend to move in the same circles that we do, the information they receive overlaps considerably with what we already know. Acquaintances, by contrast, know people that we do not, and thus receive more novel information." - Interpersonal ties on Wikipedia
The reason is that links of low or average quality do not contribute as much to the creative process.
These kinds of links perhaps require a "creative leap" to understand - the association is fuzzy, maybe there are some missing nodes in the semantic network that need to be