Portal had one central idea an epic, industry-shaking portal gun whereas QC has four: fluffy, heavy, slow, and reverse-gravity dimensions.

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This was one of the first attempts by a central bank to try out the big new idea of the postcrisis world: macro-prudential regulation.

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And Blair's idea of choice is still one handed down from on high by central government through bureaucratic target-driven initiatives like 'Choose and Book'.

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Not central air-conditioning, mind you, but window units that one could leave off if the idea of being comfortable in summer were despicable.

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