Complex system: Difference between revisions

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:''Everybody has a plan until they get punched in the mouth.''
:''Everybody has a plan until they get punched in the mouth.''
::—Mike Tyson
::—Mike Tyson
A traditional risk manager will be conditioned to using control techniques to anticipate and eliminate all risk. In a [[complex system]] this is simply not possible. One must instead depend on local managers and experts making spontaneous decisions to address the unfortunate situation as they see it and under conditions of significant uncertainty. A [[complex system]] is not totally random — in that case any action would be as good as any other — so some control is possible, but it is ''not'' possible to prescribe in advance what that action should be.
A traditional risk manager — that is, one managing [[complicated system]]s and not [[complex system|complex]] ones<ref>Open question — a ''gaping'' open question, like when your goalie has come up for a corner — is ''why'' a traditional risk manager is managing what is undoubtedly a [[wicked environment]] using tools suitable for a [[tame environment|tame]] one. But it was ever thus: [[Black-Scholes option pricing model]], which is predicated on a normal distribution, can’t work with The [[Black swan|tail events]] and whose failure in those circumstances led directly to both the [[LTCM]] collapse and the [[Great Financial Crisis]], is still widely used today, after all.</ref> — will be conditioned to using control techniques to anticipate and eliminate all risk.  
 
In a [[complex system]] this is not just hard; ''it is impossible''. One must instead depend on local managers and experts making spontaneous, provisional decisions in real-time to address the situation as they see it and under conditions of significant uncertainty. A [[complex system]] is not totally random — in that case, any action would be as good as any other — so some control is possible, but it is ''not'' possible to prescribe in advance what that action should be.


Therefore plan, but not with an expected outcome in mind. Plan ''for the unexpected''. Have band-aids, a Swiss Army knife, some duct tape and a towel with you. Try to imagine how things might unfold, and watch them as they do, adapting as you go.   
Therefore plan, but not with an expected outcome in mind. Plan ''for the unexpected''. Have band-aids, a Swiss Army knife, some duct tape and a towel with you. Try to imagine how things might unfold, and watch them as they do, adapting as you go.   

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