(gruppo 9999: projections on the ponte vecchio, 1968)

"the gestures in gruppo 9999 and pettena's work seem to be a new design typology, that of rebellion. just as elementarism marked the separation from de stijl when the level lines of mondrian were rotated, radical architects defiantly tilted the orthogonal lines of modernism and classical architecture. they contrasted the stability of classical architecture with ephemeral materials like balloons, paint and projections. mobility and transience became the trademark of many radical architects. "
-n. allinder

balloons= rebellion