Abstract
I will concern myself here with but one text.2 It will not lead us to Xenakis the musician; rather, we will meet Xenakis the poet-mathematician of architecture, and we hope also to encounter a poetic practice he encourages, called "utopia." I will also concern myself with a city that has been built after a model in the form of a text. There are sketches illustrating it, but actually no schemata or maps reproducing it completely. They tend to offer a glimpse of it in a future voyage for a wandering explorer of an other planet—ours.