From The Year's Best Science Fiction, volume 8:
TED CHIANG
Tower of Babylon
Across the centuries, many people have aspired to climb upward to God--but perhaps not quite as literally as the characters in the bizarre and compelling story that follows....
Ted Chiang is a brand new writer who has just broken into the field with sales to Omni, Isaac Asimov's Science Fiction Magazine, and Full Spectrum. Amazingly, the polished and very accomplished "Tower of Babylon" is his first published story, and he is clearly a Writer To Watch. He lives in Redmond, Washington.