"Omphalos" is a science fantasy short story by American author Ted Chiang. It is named after the Omphalos hypothesis and an 1857 book by English naturalist Philip Henry Gosse. It was first published in Chiang's 2019 collection, Exhalation: Stories.
Not who you're looking for? Others named Omphalos: religious stone artefact signifying the center of the world · book by Philip Henry Gosse · 2014 film