Jeffrey Kipnis begins the fourth of the Fecundity of a Mossy Climate conversations with a survey of Marcelo Spina’s work, from the 2002 Busan Tower to the 2014 entry by P-A-T-T-E-R-N-S in the competition for two new museums in Budapest. Spina and Tom Wiscombe and Wolf Prix join Kipnis, and discuss Spina’s work, the concept of elegance, the exploitation of architects via competitions, the significance of tools, strategies, and career trajectories.