Intertwingularity is a term coined by Ted Nelson to express the complexity of interrelations in human knowledge.
In an important sense there are no "subjects" at all; there is only all knowledge, since the cross-connections among the myriad topics of this world simply cannot be divided up neatly.
"[1] He added the following comment in the revised edition (Nelson 1987, p. DM31): "Hierarchical and sequential structures, especially popular since Gutenberg, are usually forced and artificial.
"[2] Intertwingularity is related to Nelson's coined term hypertext, partially inspired by "As We May Think" (1945) by Vannevar Bush.
[6] The concept of intertwingularity was celebrated at the "Intertwingled: The Work and Influence of Ted Nelson" conference on April 14, 2014, at Chapman University.