The Measurements Of Observers Through Systemic Functional Linguistics

Edelman (1992: 199):

Beginning with Planck's discovery of the quantum, and continuing through the early formulations of quantum theory by Bohr and Heisenberg and of the theory of relativity by Einstein, observers were no longer seen as fully detached from their measurements. In quantum measurements, the way in which observers choose to arrange their apparatus determines the outcome. In relativity theory, observers' measurements of time and length depend on their relative velocity and acceleration. Thus, the observers' conscious choices in the one case and their physical location in the other must explicitly be taken into account.

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From the perspective of Systemic Functional Linguistic Theory, measurements are construals of experience as material-relational domain of meaning by the mental-verbal domain of meaning (conscious observers).

The reason why measurements depend on the arrangement of the apparatus (Quantum Theory) and the relative velocity of the observer (Special Relativity) is because the potential meanings that can be instantiated as measurements vary with material-relational conditions of the phenomena (Quantum Theory) and conscious observer (Special Relativity).