Jeffrey Kipnis starts the sixth of the Fecundity of a Mossy Climate conversations by differentiating Devyn Weiser and Peter Testa’s research-based practice from the culturally-based practices of the previous Mossy Climate participants. In a survey of Testa and Weiser’s work, Kipnis stresses how of their research on carbon fiber and robots informs their design sensibility. Greg Lynn praises Testa and Weiser’s work for not being focused on optimizing the properties of new materials, but on architecture. Kipnis, Lynn, Weiser and Testa discuss the dialog between material research and design, different ways of being influenced by materials, and the interaction of materials and design.