And President Mubarak had done things which were unimaginable, and the idea of him crushing his people was not something that we could possibly support.

WHITEHOUSE: The White House

Other things that were unimaginable have become possible.

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Unimaginable things have happened.

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Love makes us do strange things and behave in unimaginable ways.

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Moore's Law alone, which decrees that computer-processing power will double every 18 months and has at least another ten years to run, will soon allow computers to do things that are almost unimaginable.

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It was a scene of unimaginable horror, the sort of things nightmares are made of.

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And I had to step back and say, wait a second, things have happened in this nine-month period that were unimaginable for years and years and years.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney