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August 18, 2025 • 72 mins

How language and cooperation shaped our world and human society.


Discover how language transformed from simple signals to complex communication, enabling us to cooperate, create cultures, and build civilizations. We explore the evolution of human imagination, the role of gossip, the development of societal morals, and the paradoxical nature of human violence and compassion.


Additionally, we discuss the future of communication technology and the potential mind-blowing implications of brain-computer interfaces. Packed with insights from anthropology, psychology, and neuroscience, this episode provides a comprehensive understanding of our past and a glimpse into our possible future.



ABOUT

How to Change the World is an independent podcast on a mission to document the entire history of innovation. One world-changing event at a time. In the process we are building out frameworks and mental models to think more coherently about global change.


ChangeTheWorldPod.com


Written, edited, recorded, and produced by Sam Webster Harris.


Help from:

  • Designs - Francisca Correia (available to hire)
  • Mentorship - Jeremy Enns (available to hire)



REFERENCES

(See website for more)


CHAPTERS

00:00 The magic of co-operation

02:26 Welcome

05:09 The Compression problem

08:50 ACT 1 - COGNITIVE BASIS OF LANGUAGE

08:50 Biological history of languages

13:46 The Interconnected Brain

17:24 Complex words and stuff

21:11 Teamwork

22:08 ACT 2 - GOSSIP, MYTHS & RELIGION

22:08 Gossip and the glue of society

25:46 Myths and shared delusions

30:40 Early Religions - Animism, art and penises

33:37 ACT 3 - SELF-DOMESTICATION

33:43 Shame and Blushing

38:30 The Execution Hypothesis

43:21 Reactive vs Proactive Violence

46:55 Mealtimes Sharing and small town thinking

52:12 ACT 4 - EVOLUTIONS OF LANGUAGE

52:12 Language shifts

55:59 Shame and Society

58:49 Evolution of communication

01:01:33 Magical Wizard Hats (Brain Computer Interfaces)

01:03:58 Potential Limitations

01:07:38 Predicting the future

01:09:47 WRAP UP


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