This opens the door for thinking at an abstract level about products and services.

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But we also have a tendency to talk these issues out at an abstract level.

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While the two professors' work has much in common at an "abstract level, " their methods are different, Ellingsen said.

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Reporters are capable of describing phenomena at the mile-high, abstract level, but if you can give a down-to- earth, real-life example, you increase your chances of being quoted in the story.

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On the most abstract level this is because liquidity earns real rents, those rents are distilled by a perfectly competitive market and ultimately accrue to the owners of the irreproducible factors of production.

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As I watched more and more games I began to recognize that the little armies of pieces operate like fields of force, and top level games are abstract, deeply nuanced and emotional works of art.

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If this logic is too abstract, or opens up a discomfiting door, then the default should be that government minds its business at any level.

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