Poststructuralism and complexity are plural and diverse modes of thought that share a common subscription to the `anteriority of radical relationality'. They nonetheless subscribe to a different ethic of life because they address the anteriority of radical relationality in different ways. Complexity remains strategic in its bid to become a power-knowledge of the laws of becoming. It derives that strategic ethic from its scientific interest in the implicate order of non-linearity that is said to subvert Newtonian science. Poststructuralism is poetic. (...) It derives its poetic ethic from Heidegger and from the reworking of orphic and tragic sensibilities to radical relationality with the radically non-relational. Observing that all poetry is complexity avant la lettre, the article illustrates these points with the Odyssey and concludes that while complexity is ultimately concerned with fitness, poststructuralism is preoccupied with justice. (shrink)