There is no prerequisite. I input my own context when I log on, and the pages that come up on the screen are tainted by the conditions in which I view them. The web is adaptive . It creates a different level of motion. Time functions differently.
Work evolves, it is an open field of experiment.
I can add something, remove something, re-link two pages, in an ever evolving context. Technology is changing - that also make the whole thing look very different from one day to the next.