Architecture that repairs itself?May 8, 2012 | Multimedia Venice is sinking. To save it, Rachel Armstrong says we need to outgrow architecture made of inert materials and, well, make architecture that grows itself. She proposes a not-quite-alive material that does its own repairs and sequesters carbon, too. Armstrong is a sustainability innovator who creates new materials that possess some of the properties of living systems, and can be manipulated to ‘grow’ architecture.