“All the changes that may occur with time are naturally included, for when plants grow and planets age and machines move some change from one state to another is implicit.”

Source: An Introduction to Cybernetics (1956), Part I: Mechanism, p. 9: Chapter 2 Change, lead paragraph.
Context: The most fundamental concept in cybernetics is that of "difference", either that two things are recognisably different or that one thing has changed with time. Its range of application need not be described now, for the subsequent chapters will illustrate the range abundantly. All the changes that may occur with time are naturally included, for when plants grow and planets age and machines move some change from one state to another is implicit. So our first task will be to develop this concept of "change", not only making it more precise but making it richer, converting it to a form that experience has shown to be necessary if significant developments are to be made.

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W. Ross Ashby 26
British psychiatrist 1903–1972

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Original text:
Né sous un autre ciel, placé au milieu d'un tableau toujours mouvant, poussé lui-même par le torrent irrésistible qui entraîne tout ce qui l'environne, l'Américain n'a le temps de s'attacher à rien; il ne s'accoutume qu'au changement, et finit par le regarder comme l'état naturel à l'homme; il en sent le besoin; bien plus, il l'aime : car l'instabilité, au lieu de se produire à lui par des désastres, semble n'enfanter autour de lui que des prodiges...
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