The Trouble with Physics, by Lee Smolin; Penguin, 2007, $59.95. Lord Kelvin, in the late nineteenth century, proclaimed that Physics was nearly finished. He believed that all the fundamental Laws of Nature were known and the rest was only a matter of seeing to the fine detail. Wow, was he wrong! Came the twentieth century and the revolutions of Relativity and Quantum Mechanics which disposed of the comfortable certainties of Kelvin for ever. But now Physics and the scientific enterprise may indeed be over except for some wriggling. Not because we know everything, but because of deep flaws in human…