Mr. Lambelet's interests, with degrees to match, range from physics to neuroscience. His main interest is in solving problems, however, which the twenty-three patents in his name purport to do. If you have curiosity about puzzles, you will enjoy the rifts on several subjects that seem to be unsolved conundrums. Subjects range from mathematical quandaries to the debate over free will. The chapters are explorations of a technical mind, not so much to present a solution as to discuss why they remain questions that intrigue others, not least himself. The piece on Vietnam is a heartfelt attempt to reconcile that war with his own experience of it and to plumb its teachings for today's conflicts. A short piece on why diets are a bad idea completes an eclectic offering of essays on thought-provoking topics

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