 Jane Maienschien and Kate MacCord offer a suggestive look at regeneration as a response of complex systems to injury through repair. (Maienschein and MacCord, 2022) The repair draws on inherited and in some ways predelineated organization, as well as on responses to changing environments. Both Fagan’s stem cell-based alternatives to predetermined development and Maienschein and MacCord’s suggestions about regeneration across all scales of life hark back to Morgan’s suggestion that