In Tetrad form, the artefact is seen to be not neutral or passive, bur an active logos or utterance of the human mind or body that transforms the user and his ground. (Marshall McLuhan)

In Tetrad form, the artefact is seen to be not neutral or passive, bur an active logos or utterance of the human mind or body that transforms the user and his ground.

Marshall McLuhan

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body form ground human logos mind seen user utterance

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