2009 “When in Rome…,” Fairplay–Lloyd’s Register 6549:38 (17 September).
2009 “The Ripple Effect,” Fairplay–Lloyd’s Register 6530:40 (7 May).
2009 “Trading the Curtains,” Fairplay–Lloyd’s Register 6528:38 (23 April).
2006 “Bears, Bombs, and Popcorn: Some Considerations When Mining Other Cultures for Source Materials,” Vector 247:17-19.
2002 “Models of Time: Imagining the Future,” New York Review of Science Fiction 15,1:1, 4.
2001 “Science Fiction Without the Future,” New York Review of Science Fiction 13, 9:1, 6-8.
Winner, 2002 Pioneer Award for Best Critical Essay.
Reprinted in James Gunn and Matthew Candelaria, eds. (2005), Speculations on Speculation: Theories of Science Fiction, pp. 331-342. Oxford: Scarecrow Press; and at Strange Horizons (June 2013).