40. Let a room be made as dark as possible; let there be a circular opening in the window-shutter about three inches in diameter, which may be closed or not at pleasure. The sun being suffered to shine through this on a white surface, let the spectator from some little distance fix his eyes on the bright circle thus admitted. The hole being then closed, let him look towards the darkest part of the room; a circular image will now be seen to float before him. The middle of this circle will appear bright, colourless, somewhat yellow, but the border will at the same time appear red. After a time this red, increasing towards the centre, covers the whole circle, and at last the bright central point. No sooner, however, is the whole circle red than the edge begins to be blue, and the blue gradually encroaches inwards on the red. When the whole is blue the edge becomes dark and colourless. This darker edge again slowly encroaches on the blue till the whole circle appears colourless. The image then becomes gradually fainter, and at the same time diminishes in size. [...]

42. [...] If we receive the impression of the bright circle as before, and then look on a light grey surface in a moderately lighted room, an image again floats before us; but in this instance a dark one: by degrees it is encircled by a green border that gradually spreads inwards over the whole circle, as the red did in the former instance. As soon as this has taken place a dingy yellow appears, and, filling the space as the blue did before, is finally lost in a negative shade. (Goethe, Theory of Colours)

The character of keys is to link up with one another. Then faulty keys are those that permit to choose but not to express.

Code - etym. c.1300, "systematic compilation of laws," from O.Fr. code "system of laws, law-book" (13c.), from L. codex, earlier caudex "book, book of laws," lit. "tree trunk," hence, book made up of wooden tablets covered with wax for writing. Meaning "cipher" (the sense in secret code) is from 1808.

To decode an image is not to decode what it shows but instead how it is programmed.

Image is a symptom of chemical and electronic processes. It is a way of structuring particles and therefore envisioned surface.

Archive - etym. c.1600, from Fr. archif (16c.), from L.L. archivum (sing.), from Gk. ta arkheia "public records," pl. of arkheion "town hall," from arkhe "government," lit. "beginning, origin, first place"

In computer jargon to 'unarchive' something is to de-compress data, such as from a zip file or a backup drive. The archive in this form is an unaccessible, incompatible being. It is inherently in need of unpacking. (from transmediale 2012)

"History is, after all, not merely the accumulation of facts but an active re-visioning, a necessary corrective discourse, and fundamentally an act of interrogation - not just of the facts but of the displaced, the forgotten, the disregarded." (Vilem Flusser)

"I have succeeded in encoding the entire text of Moby Dick in a single pixel. The thing is, the key to decode it is several hundred pages of text..."

In 2008, Shermer defines patternicity as "the tendency to find meaningful patterns in both meaningful and meaningless noise".