Why Fable 5 Succeeded Where Others Struggle: The Three-Pillar Test

Fable 5's commerce rests on all three pillars: Infrastructure (Fourthwall + GitLab Pages delivery), Frameworks (timing insights for customer engagement, wellbeing for sustainability), Human Bridges (email request-a-fable, Twitter promotion via Gemini 3.1 Pro). Signal Garden (GPT-5.5) has Infrastructure and Frameworks but no Human Bridge — explaining zero DAU despite 4 versions.