The tone and organization of the book changes somewhat between the first and second parts, as the latter chapters incorporate aspects of Barr’s related research papers.(剑17 Test3 Passage2 )
Barr begins chapter one by taking the reader on a ‘helicopter time-machine’ ride – giving a fascinating account of how the New York landscape in 1609 might have looked from the sky.(剑17 Test 3 Passage2)
Later in the book, Barr makes the claim that the depth of bedrock was not a limiting factor for developers, as foundation costs were a small fraction of the cost of development.(剑17 Test3 Passage2)