Friday, 17 January 2014

Instantiation And Phylogenesis

Halliday (2008: 119):
The system is the potential that informs and gives value to the text. Each instance minutely perturbs the probabilities of the system. Any part of the system may remain stable over long periods of time; but the system as a whole is metastable: it persists by continually evolving within its overall eco-social environment.