Nexus
by Yuval Noah Harari
A Brief History of Information Networks from the Stone Age to AI
11
Chapters
83+
Action steps
10
Minutes
AI PERSONALISED
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Preview — Chapter 01: What Is Information?
Before there were words, there was meaning. Information is simply organized difference — the pattern that tells you something new. A trail of footprints, a sound, or a blinking cursor — all carry data. Early humans learned that survival depended on exchanging signals faster and clearer. From gestures and grunts came shared understanding, and from that, culture. The moment we began storing information outside our bodies — in marks, objects, or memory — civilization began. Knowledge stopped dying with its owner. As networks grew, so did our complexity. Language turned chaos into order, allowing cooperation on massive scales. But with every new way to share information came distortion. Misunderstanding became as powerful as truth. The same neural tools that allowed empathy also birthed manipulation. The idea of “information” became a paradox — essential yet unreliable. Every message is filtered through emotion, memory, and bias. And yet, it’s this fragile system that built everything we know. Information is humanity’s bloodstream; its purity determines our collective health. Every signal we send shapes reality. The better we understand information, the better we understand ourselves.
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