"What might be possible in theory is, from a technological point of view, blatantly impossible, " he says.

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Note to the media: All points of view on scientific and technological issues are not created equal.

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At the other end of the political spectrum, historian Gertrude Himmelfarb echoes Terkel's view that the economic and technological gains of America have been accompanied by steep social and moral costs.

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In other words, the decline of bricks-and-mortar shops selling music and books, which other countries view mainly in terms of technological change, acquires more than a tinge of economic nationalism in France.

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"On top of that there is a 5% tidal stream figure, and with future technological development that is likely to be an underestimate in my view, " he said.

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