Old Maps, Aerial Photographs and Experimental Derives

Richard picks out a great Guy Debord quote in his review of Simon Sadler’s The Situationist City. I’ve found a longer version of the quote which I’ll reproduce for posterity here:

“With the aid of old maps, aerial photographs and experimental derives, one can draw up hitherto lacking maps of influence, maps whose inevitable imprecision at this early stage is not worse than that of the first navigational charts; the only difference is that it is a matter no longer of precisely delineating stable continents, but of changing architecture and urbanism.”

Fantastically resonant, that.