Basicly, to model anything correctly over a long period of time, you need a model just as big as the original, and it needs to run just as long as the original.
The term "Butterfly effect" is used to say that, (Simply)
If you were going to model the weather (its normaly the weather, but it could be anything), then you wouldnt model down to the level of a butterflys wings, but that in actual reality you would have to. That is, any model at all goes wrong eventualy if you make any assumption about either the original variables or the external influences or the level of detail.
Of course Bishop Berkly said that the whole universe is being modeled by God in his imagination, and the Buttyflys wings are only applicable if someone happens to be looking at them when they flap, meaning that if you never think of adding the buttiflys wings into the model, it wont effect it, but once you have concidered it then it will effect it.
The term "Butterfly effect" is used to say that, (Simply)
If you were going to model the weather (its normaly the weather, but it could be anything), then you wouldnt model down to the level of a butterflys wings, but that in actual reality you would have to. That is, any model at all goes wrong eventualy if you make any assumption about either the original variables or the external influences or the level of detail.
Of course Bishop Berkly said that the whole universe is being modeled by God in his imagination, and the Buttyflys wings are only applicable if someone happens to be looking at them when they flap, meaning that if you never think of adding the buttiflys wings into the model, it wont effect it, but once you have concidered it then it will effect it.