The Blind Geometer

The story can be found in the anthologies Nebula Awards 23 (1989), edited by Michael Bishop, and The Mammoth Book of Modern Science Fiction: Short Novels of the 1980s (1993) edited by Martin H. Greenberg, Isaac Asimov and Charles G. Waugh. The story is half of Tor Double #13: The Blind Geometer/The New Atlantis (1989), with Ursula K. Le Guin. It is included in the collections Down and Out in the Year 2000 (1992) and The Best of Kim Stanley Robinson (2010).