Unnatural laws

In “Unnatural Laws,” Nancy Cartwright challenges the idea that everything could ultimately be accounted for with universal laws of nature that are immutable and without exceptions. “We live our everyday lives in a dappled world unlike the world of fundamental particles regimented into kinds, each just like the one beside it, mindlessly marching exactly as has forever been destined. In the everyday world the future is open, little is certain, the unexpected intrudes into the best-laid plans, everything is different from everything else, things change and develop, and different systems built in different ways give rise to different patterns. For centuries this everyday world was at odds with the scientific world governed through-and-through by immutable law. But many of the ways we do science today bring the scientific image into greater harmony with what we see every day: much of modern science understands and manipulates the world without resort to universal laws.’

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