8.1 Drexlers Mechanical (Molecular) Axle and Bearing 147
8.1.1 Smalleys Refutation of Machine Assembly 148
8.1.2 Van der Waals Forces for Frictionless Bearings? 150
8.2 The Concept of the Molecular Assembler is Flawed 150
8.3 Could Molecular Machines Revolutionize Technology or even Self-replicate to Threaten Terrestrial Life? 152
8.4 What about Genetic Engineering and Robotics? 153
8.5 Is there a Posthuman Future as Envisioned by Fukuyama? 155
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