"The decisive moment, the popular Henri Cartier-Bresson approach to photography in which a scene is stopped and depicted at a certain point of high visual drama, is now possible to achieve at any time. One's photographs, years later, may be retroactively rephotographed by repositioning the photographer or the subject of the photograph, or by adding elements that were never there before but now are made to exist concurrently in a newly elastic sense of space and time."