People in Argentina commonly kiss one another on the cheek in saying hello and goodbye, expressing a warm feeling even between a dentist office receptionist and patient.

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This despite the fact that he only spoke a few words of English - "toilet, football, hello and goodbye, " he said - when he moved to the UK a year ago.

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The band's other hits included Torch, Bedsitter and Say Hello, Wave Goodbye.

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Say goodbye to the gigabyte and hello to the exabyte, five of which are worth 37, 000 Libraries of Congress .

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But as we travel deeper into this new world of constant connectedness and ever-present technology, I wonder whether we are saying hello to the world or goodbye to society.

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So, goodbye jaggy stair steps, hello smooth slides.

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