This photo and the next were taken at Place de la République in Paris on July 5 at about 11 PM.
In Signifying Nothing: The Semiotics of Zero, Brian Rotman writes of “parallel patterns of semiotic disruption” to describe how the introduction of the sign for zero affected arithmetic, perspectival painting, and economic exchange. “Zero is to number signs, as the vanishing point is to perspective images, as imaginary money is to number signs.” Rotman is quoted in endnote 18 to Chapter 4 of MWA:
“If the xeno part of xenomoney threatened collapse of the world money system from the past, from unsupportable debt… the money part of it threatens… collapse from the future, from an unsustainable mutability of money signs created by the financial futures markets.”
“‘Xenomoney’ [as I write there] is [Brian] Rotman’s term for a certain kind of fictitious capital, supplanting paper money and viewed as “a sign able to signify its own future.” (See also this article by Angus Cameron.) “To paraphrase Rotman, [as I wrote in my preliminary notes for the book] mathematics not only creates the technical conditions for financial speculation but also the semiotic preconditions by naturalizing the empty signifier.”
In this report in Handelsblatt, published before the Greek referendum, Bundesbank President Jens Weidmann speculates on the consequences for the German budget of the sudden disappearance of large quantities of Greek xenomoney. I am not an applied mathematician and therefore can’t offer professional advice on where you should put your euros, although I am strongly tempted to make a suggestion.