I often recall pages that seem loosely related to conversations. I'll make some notes as to what made me think of them.
nov
Modular Authentication where Paul sets the agenda for our improved security mechanisms. Final discussions appear in issues. github 
Chorus of Voices where we think through what would be required of a community to be successful in this wiki. When we say 'explain' we mean we need more pages.
Natural Genetic Infrastructure called for by Chris Alexander in a 1996 keynote where computer systems provide for alive, humane, ecologically profound world.
Fluently Exploring Morphospace suggests pre-metazoan life searched for a pattern language of body forms within which more advanced evolution could occur.
dec
Hacking Social Impact was an event in 2012 for which I assembled an outline describing the birth of agile software development methods.