Lever Point

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Lever points (also named 'Leverage Points') in a [[Complex_Adaptive_System|complex adaptive system]] are according to John H. Holland points at which a small effort can produce a desired, directed effect. They are places within a complex adaptive system where a little change makes a big difference and a small shift a big change. At these critical transition points the behavior of a complex system changes fundamentally. They are similar to Gell-Mann's [[Frozen_Accident|frozen accidents]]. Lever points identify places to intervene in a system.

John H. Holland writes about them (see [http://www.capatcolumbia.com/CSFB%20TLF/2000/holland_sidecolumn.pdf here])

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: ~~"~~Almost every complex adaptive system that we know of has lever points. These are great things if you can find them. A lever point allows you to make big, directed changes for a relatively small effort. A vaccine is a good example of a lever point. An immune system is terribly complex. But we do know that for some diseases, we can make a small injection and train the immune system to resist a disease for the rest of its existence — much longer than the life span of any blood cell in your body.~~"~~

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: "Almost every complex adaptive system that we know of has lever points. These are great things if you can find them. A lever point allows you to make big, directed changes for a relatively small effort. A vaccine is a good example of a lever point. An immune system is terribly complex. But we do know that for some diseases, we can make a small injection and train the immune system to resist a disease for the rest of its existence — much longer than the life span of any blood cell in your body."

see also [[Butterfly_Effect|butterfly effect]], [[Path_Dependence|path dependence]], [[Frozen_Accident|frozen accident]]

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 Lever points (also named 'Leverage Points') in a [[Complex_Adaptive_System|complex adaptive system]] are according to John H. Holland points at which a small effort can produce a desired, directed effect. They are places within a complex adaptive system where a little change makes a big difference and a small shift a big change. At these critical transition points the behavior of a complex system changes fundamentally. They are similar to Gell-Mann's [[Frozen_Accident|frozen accidents]]. Lever points identify places to intervene in a system.
 John H. Holland writes about them (see [http://www.capatcolumbia.com/CSFB%20TLF/2000/holland_sidecolumn.pdf here])
-: &quot;Almost every complex adaptive system that we know of has lever points. These are great things if you can find them. A lever point allows you to make big, directed changes for a relatively small effort. A vaccine is a good example of a lever point. An immune system is terribly complex. But we do know that for some diseases, we can make a small injection and train the immune system to resist a disease for the rest of its existence — much longer than the life span of any blood cell in your body.&quot;
+: "Almost every complex adaptive system that we know of has lever points. These are great things if you can find them. A lever point allows you to make big, directed changes for a relatively small effort. A vaccine is a good example of a lever point. An immune system is terribly complex. But we do know that for some diseases, we can make a small injection and train the immune system to resist a disease for the rest of its existence — much longer than the life span of any blood cell in your body."
 see also [[Butterfly_Effect|butterfly effect]], [[Path_Dependence|path dependence]], [[Frozen_Accident|frozen accident]]