This section of Quicksilver , asserting itself (elsewhere, in marketing copy) as a font of 'e-book extras,' and attempting to draw an analogy to the 'special features' that distinguish a DVD, is in fact a mere copy-'n'-paste job (with some styling by the editors) from online sources created by Neal Stephenson in collaboration with his publisher and others. These sources, to which we have elected not to 'live-link,' may or may not exist at the time that this e-book file has found its way into your hands (thus the election not to live-link). In which case our little effort here may serve some archival purpose, and wouldn't that be grand?