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Strategies & Market Trends : Free Float Trading/ Portfolio Development/ Index Stategies
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From: dvdw©4/5/2008 7:43:09 AM
of 3821
 
Iterated systemic action; Supply and demand are counterprogramming to a system which is designed to deny it.

From Wiki on the current program and its goal.

Action at a distance is an anti-pattern (a recognized common error) in which behavior in one part of a program varies wildly based on difficult or impossible to identify operations in another part of the program. The way to avoid the problems associated with action at a distance are a proper design which avoids global variables and alters data in a controlled and local manner.

The term is based on the physics concept of the same name, where particles may be created that cancel each other out. Such particles instantaneously communicate information across space regardless of distance in what Albert Einstein called "spooky action at a distance".

Bugs due to "action at a distance" may arise because a program component is doing something at the wrong time, or affecting something it should not. It is very difficult, however, to track down which component is responsible. Side effects from innocent actions can put the program in an unknown state, so local data is not necessarily local. The solution in this particular scenario is to define which components should be interacting with which others. A proper design that accurately defines the interface between parts of a program, and that avoid shared states, can largely eliminate problems caused by action at a distance.
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