How do arbitrary signs occur? The article suggests that the basis
of arbitrariness is the liberation of the signified from a rigid connection with
the signifier. An important role is played by the psychological present. The
psychological present is not one-dimensional but is represented by dimensions of
sequence, simultaneity, and duration. Non-arbitrary signs are as if one-dimensional:
the signifier and the signified are in undifferentiated unity – in one dimension of
the present time. When forming arbitrary signs, the signified and the signifier are
separated from each other and are embodied in different dimensions – the levels
of the psychological present tense, invariant and variable. At the same time, the
signified occupies an invariant level, and the signifier is variable so that the signified
remains constant with any change in the signifier. Therefore, different signifiers
can be applied to the same object at will, and the content of the designated object
does not change. The signified thus becomes relatively independent and free from
the signifier.