by serendipity I clicked through on this link and sgentle's link to Kay on McLuhan and the following sentence comes remarkably close to my experience of the two

by serendipity I clicked through on this link and sgentle's link to Kay on McLuhan and the following sentence comes remarkably close to my experience of the two presentations of the Selection task: > .. the most important thing about any communications medium is that message receipt is really message recovery: anyone who wishes to receive a message embedded in a medium must first have internalized the medium so it can be “subtracted” out to leave the message behind. (a tangent, but perhaps interesting)