In fact, they come from the dissection of frogs: the study of animal electricity, pioneered by Luigi Galvani, led to the first device for storing electric power. Technology comes from science in unexpected ways (unexpected especially by technologists). In this wonderful, little booklet there's plenty of dissections. The logical material which constitutes the basis of human and machine reasoning is cut into the tiniest conceivable pieces, and then gently touched with some elegant, spindly tools made on purpose. These pieces then suddenly animate, and their internal current makes them assume unexpected configurations. One day our methods of reasoning will follow these new, more symmetric patterns, and there will be more light in our minds.