You Are Not So Smart 323 - Job Therapy - Tessa West (rebroadcast)
50 snips
Sep 29, 2025 
In this discussion, Harvard psychologist Steven Pinker shares insights from his book, detailing the nature of common knowledge and its crucial role in human interaction. He distinguishes between private, shared, and common knowledge, explaining how they influence cooperation and coordination. Pinker delves into the evolution of language, arguing it developed for better coordination among people. He also tackles topics like shifting word meanings and how authoritarian regimes manipulate common knowledge to suppress dissent.
AI Snips
Chapters
Books
Transcript
Episode notes
Conspicuousness Creates Common Knowledge
- Humans avoid literally nesting infinite "I know that you know" thoughts by treating conspicuous public events as granting common knowledge.
- Conspicuousness lets mortals act as if infinite recursion occurred and coordinate effectively.
Signal Change With Conspicuous Rituals
- Use public ceremonies or conspicuous signals to create common knowledge when you need coordinated change.
- Mark transitions (marriage, rules) with visible rituals so others recognize and respect them.
Language Is A Coordinating Convention
- Language conventions function because speakers assume words are common knowledge among listeners.
- Children learn words by assuming public use implies shared meaning, enabling large-scale coordination.
