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le défi des vulnérables, paris, larousse, 1973, p.
it is as if the airborne viewpoint, which had previously been "only" conceived in metaphysical or spiritual terms and has "at last" been transposed into scientific reality by the technological conquest of space had turned back (converted?) our gaze, behaviour and attitudes to the primary component parts of what the 20th century has "only" rediscovered through science, namely that while the earth is physically finite, history is open to the infinity of habitable worlds.