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).