This week we’re joined by film director Shan Nicholson and musical artist and activist Roxiny. What motivated Shan to make “Downtown Calling” and “Rubble Kings.” New York’s mix of danger and opportunity. The DJ set that led to “Downtown Calling.” How DJing and archival research are nearly the same thing. Shan’s 2010 film “Rubble Kings.” Roxiny’s song on the soundtrack of “Rubble Kings.” How New York has evolved culturally and economically, largely for the worse. Check out Roxiny’s single.