Materials and analyses towards an analysis of the limits of coding in qualitative analysis. Or in Spivak's terms: since one cannot not code, how can those structures and limts be ab-used, used from beneath and below? What are the underground movements that operate otherwise than grounded movements, but still provide a working surface, a different kind of place to ground (different) truths (differently)? You have to sign, so how to sign differently? How do you write software code under erasure? That's the PECE experiment, in search of methods.