Propensity is the Mother of Invention 1983 At Southern Exposure Gallery, S.F., CA. Pine and nylon. The tower was 300" x 17" x 13". a 216" "bridge" connects the "tower" w/ Propensity Observed (1983) which extends 540" along the wall making several digressions along the way. It is also connected to other parts not visible in this slide back to top