A big dumb object.
- 1993 P. Nicholls J. Clute & P. Nicholls Ency. of SF № 119/1: Sf's much vaunted sense of wonder is seldom more potently evoked than in a good BDO story.
- 1999 C.J. Cherryh - second time's charm (Usenet: rec.arts.sf.written) Sept. 21: There _are_ Cool Things, but they don't tend to be Toys For The Boys or BDO.
- 2001 Interzone (Oct.) № 28/2: Ananda, the mooted final chunk of the Chaga Saga [...] has back-burnered, but suffice to say that [...] there'll be a resolution with Shepard, who'll make it back from the BDO.
- 2005 J.D. Owen Infinity Plus (Internet) Mar. 12: Terry Pratchett's BDO is somewhat more whimsical in nature, as befits a world that is built for fantasy, rather than SF, adventures. Discworld, after all, is based on old cosmology, being a disc of material resting on the backs of four huge elephants, who in turn are standing on a giant turtle swimming through space.
