When Everyone Knows That Everyone Knows...
from The Gist Talk Hosted by kw
In his book When Everyone Knows That Everyone Knows..., cognitive scientist Steven Pinker explores the profound impact of common knowledge on human society and psychology. He distinguishes this technical concept from private knowledge, explaining that common knowledge exists only when individuals not only know a fact but also know that everyone else shares that same awareness. This mental state serves as a vital foundation for coordination, allowing people to synchronize their actions in everything from simple conversations to complex financial markets. Pinker argues that our intuitive sensitivity to what is "public" helps maintain social norms, yet it also explains collective phenomena like social media shaming and political revolutions. By examining how we strategically reveal or hide information, the text reveals how this logical "hall of mirrors" shapes our personal relationships and broader cultural structures. Ultimately, the work suggests that common knowledge is the essential glue that enables our species to function in large, cooperative groups
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