That done, trying the experiment with different conductors may suggest why a subtle change in the structure of an insulator or a superconductor can cause a major change in its character.

ECONOMIST: Magnetism

Rapid access to this structure allows the trader to undertake subtle reasoning and reach conclusions rapidly, a highly useful human skill.

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They include irrelevant information, subtle differences in the way decisions are framed, and the structure of the context in which people operate.

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