Possibilities and potential are at the forefront in this general issue of Mosaic. It offers new explanations and meaning to old challenges, including Chaucer’s scatology, Gilles Deleuze and Félix Guattari’s experimentation, and the figurative and mythic possibilities of science and nature. A range of texts are examined in this manner, including Chaucer’s Summoner’s Tale, Franz Kafka’s Metamorphosis, and Margaret Atwood’s Surfacing.