Where would Cincinnati's art scene be without its alternative-leaning co-ops and their new ideas? This Friday at 7 p.m., CS13 in Over-the-Rhine will combine impassioned art discussion with running in its first Critical Run event. Participants will argue about art's relationship to economic capital based on material in the publication Art Work from Chicago collective Temporary Services (www.artandwork.us). The three-mile run will be taken at a slow pace, presumably so participants won't be too winded to argue. People are also invited to follow along on bicycle or combine running with walking. The route of the run is available at www.gmap-pedometer.com/?r=3278067.