The preceding analyses have removed a set of assumptions that, in many contemporary formulations, quietly support systemic functional linguistics:
- context as an environment acting on language
- register as a set of external variables
- realisation as bidirectional or interactive
- social process as a grounding substrate
With these removed, the question is no longer whether systemic functional linguistics is correct in its extended forms.
The question is:
what remains of it when constraint is taken to be internally sufficient, and when transitivity, mechanism, and grounding are excluded?
1. The System Remains — But Not as a Mechanism
The notion of system is still central.
But it cannot be understood as:
- a mechanism generating outputs
- a structure processing inputs
- or a device operating over time
Instead:
a system is a structured organisation of potential.
It specifies:
- what distinctions are available
- how options are differentiated
- and how selections are constrained
A system does not produce instances.
It defines the space within which instantiation is possible.
2. Choice Remains — But Not as Decision or Response
The concept of choice is also preserved.
But not as:
- a cognitive act
- a response to external conditions
- or a selection influenced by variables
Rather:
choice is the actualisation of one path within a structured potential.
It is not caused.
It is not triggered.
It is the determination of an instance within constraint.
3. Stratification Remains — As Realisational Organisation
The stratified architecture remains intact:
- semantics
- lexicogrammar
- phonology
But the relations between strata must be understood precisely:
lower strata realise higher strata.
This is not causal influence.
It is not bidirectional interaction.
It is a one-way relation of actualisation:
- semantics is realised in lexicogrammar
- lexicogrammar is realised in phonology
Each stratum is distinct, yet none operates independently of the others in instantiation.
4. Register Remains — As Functional Variation Within the Semiotic
Register is preserved, but its interpretation changes fundamentally.
It is not:
- a set of contextual variables
- a configuration of external factors
Instead:
register is a functional variety of language, viewed as a subpotential within the semiotic system.
From the pole of potential:
- register appears as a structured region of meaning possibility
From the pole of instance:
- the same variation appears as a text type
Register is therefore perspectival, not causal.
5. Context Remains — As a Stratum Realised by Semantics
Context is retained, but not as an environment.
It is not:
- external to language
- acting upon meaning
- or providing inputs to it
Instead:
context is a distinct semiotic stratum realised in semantic actualisation.
Its organisation is specified through:
- field
- tenor
- mode
These are not variables acting on language.
They are dimensions of contextual organisation that are realised in meaning.
6. Realisation Remains — As a Stratified Relation
Realisation remains the core relational principle.
But it must be understood strictly:
- it is not causal
- it is not bidirectional
- it is not mediated by mechanism
Rather:
realisation is the relation by which a lower stratum realises a higher within a single semiotic organisation.
There is no transmission between strata.
No influence.
No feedback.
Only realisation.
7. Coupling Replaces Interaction
Where earlier models relied on interaction—between language and context, or between system and environment—this framework replaces that with coupling.
Coupling is:
the non-independence of distinct organisations under constraint.
Crucially:
- there is no shared substrate
- no transfer between domains
- no mechanism connecting them
Yet their actualisations are co-determined in the sense that each is constrained in relation to the other.
8. Instantiation Remains — As Perspectival Actualisation
Instantiation is preserved, but clarified.
It is not:
- a temporal process
- a movement from potential to instance
Rather:
instantiation is the perspectival shift from system (potential) to text (instance).
From one perspective:
- system is potential
From another:
- the same variation appears as instances of texts
Instantiation does not occur in time as a process of selection.
It is the perspective under which potential is construed as actualised.
9. Text Remains — As Actualised Construal
Text remains the primary unit of analysis.
But not as:
- a product of production processes
- or an output of a system operating over time
Instead:
a text is an instance of meaning actualised under constraint.
It is not generated.
It is not transmitted.
It is the realised configuration of semiotic organisation at a point of instantiation.
What Has Been Removed
To summarise what does not remain:
- no environment acting on language
- no variables influencing choice
- no bidirectional realisation
- no social process as substrate
- no mechanisms of transmission or interaction
These are not reinterpreted.
They are excluded.
What Remains — In One Line
Systemic functional linguistics survives, but only in a strictly constrained form:
as a stratified account of how semiotic potential is organised and actualised, without appeal to external influence, causal mechanism, or transitive interaction.
Closing Remark
What has been lost is not explanatory power.
What has been lost is a particular style of explanation:
- one that relies on transfer, influence, and grounding
What remains is a different explanatory regime:
- one based on constraint, stratification, and actualisation
In this regime, systemic functional linguistics is no longer a model of how language is caused.
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