To a large extent, Thoreau lets the book review itself through these demonstrative excerpts, only occasionally stopping to advance a minor technical quibble against a grandiose technological extrapolation or to experiment with going even further out on Etzler's limb.
For the most part, Thoreau presents the book as a means of demonstrating its ideas, only occasionally diverting attention to a minor technical concern or pushing the boundaries of Etzler's vision even further.