HIST000

Sapiens: A Brief History of Humankind

IDEAS & DISCOVERY / General Reading

Lesson 2: The Tree of Knowledge

Lesson 2

EvoClass AI

2026-09-17

READ / QUESTION / CONNECT

Start Reading with Curiosity

Describe the timeframe of the Cognitive Revolution, the possible genetic mutation that caused it, and why it became a turning point in the history of Homo sapiens.
Distinguish animal communication from Sapiens language, and explain why the ability to discuss fictional things is its most distinctive feature.
Analyze the gossip theory, the 150-person cooperation threshold, and how fictional stories expanded the scale of social cooperation.
Using Peugeot and limited liability companies as examples, explain how imagined realities, legal fictions, and social constructs operate.

EvoClass · General Reading