If someone is interested in real technical description of molecular manufacturing, you may read Eric Drexler's "Nanosystems: Molecular Machinery, Manufacturing

If someone is interested in real technical description of molecular manufacturing, you may read Eric Drexler's "Nanosystems: Molecular Machinery, Manufacturing and Computation". Most parts of this book can be read on the author's website http://e-drexler.com/d/06/00/Nanosystems/toc.html http://e-drexler.com/d/06/00/Nanosystems/toc.html , and if you know how to google you can find the whole book. The book contains a careful physical analysis of molecular machines. The technical material is unchallenged to the present day.