Behavioral and Brain Sciences

Short Communication

Replication in selective systems: Multiplicity of carriers, variation of information, iteration of encounters

George N. Reeke a1
a1 Laboratory of Biological Modelling, The Rockefeller University, New York, NY 10021 [email protected]


An analysis of biological selection aimed at deriving a mechanism-independent definition removes Hull et al.'s obligatory requirement for replication of the carriers of information, under conditions, such as those obtaining in the nervous system, where the information content of a carrier can be modified without duplication by an amount controlled by the outcome of interactions with the environment.