#Cybernetics stands to the real machine - electronic, mechanical, neural, or economic - much as geometry stands to a real object
in our terrestrial space.
It takes as its subject matter the domain of all possible machines,
and is only secondarily interested if informed that some of them have not yet been made, either by Man or by Nature.
#WR_Ashby (1956) - An Introduction to Cybernetics
A #sign is something, A, which brings something, B, its #interpretant sign determined or created by it, into the same sort of correspondence with something, C, its #object, as that in which itself stands to C.
#CS_Peirce (1902)
In #Kihbernetics a sign is the #model describing (documenting) a #system (“mental model”) abstracted from a real #phenomenon (object) by an #observer (the interpretant).
