W. Ross Ashby - Variety Quotes

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The concept of "variety" [is] inseparable from that of "information."

W. Ross Ashby

Every stable system has the property that if displaced from a state of equilibrium and released, the subsequent movement is so matched to the initial displacement that the system is brought back to the state of equilibrium. A variety of disturbances will therefore evoke a variety of matched reactions.

W. Ross Ashby

[Constraint] is a relation between two sets, and occurs when the variety that exists under one condition is less than the variety that exists under another.

W. Ross Ashby