It proves possible to extend the phase transition models of previous chapters, in effect generalizing the Kadanoff/Wilson picture of analogous dynamics in physical systems. The argument leads to estimates of fragment sizefragment size after such transition, with larger fragments having higher probability of survival under selection pressure. A singular aspect is the emergence of a broad spectrum of possible ‘renormalization symmetries’ in biological and cognitive, as opposed to physical, systems. The model applies to both cognitive and heritage information transmission processes and their composites.