Blurb:

The conclusion summarises the main points. Strata are here to stay. However, there is a need to revisit relations between the various ‘levels’ that get represented as strata in SFL models and to ask whether some strata (such as discourse and context) mightn’t or couldn’t be better described by other constructs. At issue is the need to continue to develop the view of language as a dynamic open system embedded in socio-cultural contexts but also change, where change is warranted especially by changing understanding of socio-cognitive and neurobiological contexts and the intersections of these with socio-cultural contexts.