> The butterfly effect only works when a physical system is on the knife's edge, that it is prone to unstable/chaotic behavior. I am not sure exactly what you

> The butterfly effect only works when a physical system is on the knife's edge, that it is prone to unstable/chaotic behavior. I am not sure exactly what you mean, but that does not sound right to me. The weather, for example, is a chaotic system that is affected by the butterfly effect. Yet it is not on a knife's edge, I think? We will never ever, no matter the technological advancements, be able to predict the weather two months in the future. That could very well, as far as I know, require the temperature in every square foot of the atmosphere with five significant digits.