interface grammars

This is design built upon ‘turn taking’—inspired by human dialogue, or board games—which is why CASA is so important when thinking about what’s gone on with LLMs in the last... 3 years. Turn taking (chat) was the technologies first major UX unlock.

Reeves and Nass labelled this the paradigm Computers Are Social Actors (CASA) .

To examine its status as an OG “little guy,” we must consider three separate things: his vision, execution, and location. All three still have downstream effects on AI Agent design today.