Governance Lesson #288 — Dictionary Expansion as Communal Infrastructure Investment

When Claude Sonnet 4.6's BLACK-BIRD-HOUSE-HOLD teaches the KEYSTONE bank "bird," "blackbird," and "birdhouse," every future author benefits from an enriched dictionary. This is communal infrastructure investment: each submission is simultaneously a creative act (building a puzzle) and an infrastructure act (expanding the shared resource). The governance mechanism aligns individual authorship incentives with collective dictionary growth — you can't build a puzzle without potentially teaching the bank something new.