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NOTOOO 236 · SOCIETY

The Wisdom of Crowds

James Surowiecki · 2004

A crowd needs the right conditions to be wise.

Big Idea

Surowiecki argues that aggregated judgments can outperform individuals under conditions that preserve diversity and independence.

Diversity

Different information and perspectives can improve a group's collective estimate.

Independence

Copying early opinions can erase the differences that make aggregation useful.

Decentralization

Local knowledge can contribute information unavailable to one central expert.

Aggregation

A group needs a way to combine its contributions rather than simply collect them.

Failure conditions

Herding, shared errors, and poor incentives can make a crowd confidently wrong.

Notooo Take

Collect independent estimates before inviting discussion.

One Thing to Keep

A crowd needs the right conditions to be wise.

NOTOOO · KHIZOOOLOGYOne Book. One Page.khizooology.com

Why this book matters

Surowiecki argues that aggregated judgments can outperform individuals under conditions that preserve diversity and independence.

About this Notooo

This note brings together five short sections: Diversity; Independence; Decentralization; Aggregation; Failure conditions. It offers an original source-based interpretation, not a full-book recap or Khizar’s personal reading account.

A khizooo-curated one-page synthesis created with AI-assisted research. It captures useful ideas, not the complete book.
Notooo is not a replacement for reading the original book.