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The invention of communication tools – from language to printing, TV and the internet – have shaped not just what we can do at any time but who we are, says the writer.

The invention of communication tools – from language to printing, TV and the internet – have shaped not just what we can do at any time but who we are, says the writer.

PHOTO: AFP

Martin Wolf

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The creation, communication and exploitation of knowledge are the defining abilities of human beings as social animals. These capacities, more than anything else, made them masters of the planet.

This makes our tools of communication – from language to writing, printing, telecommunications, radio, television and now the internet – the defining technologies of their eras. Their invention and use have shaped not just what we can do at any time, but who we are.

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