The point of the butterfly effect is that every small input magnifies so much in a chaotic system over time that you won't be able to predict it correctly if you miss any detail, even one so insignificant as a single flap of a single butterfly's wings.
The moral being that a chaotic system is fundamentally unpredictable in detail, and can only be predictable in averages and aggregates. (So we can predict climate, but not weather.)
The point of the butterfly effect is that every small input magnifies so much in a chaotic system over time that you won't be able to predict it correctly if you miss any detail, even one so insignificant as a single flap of a single butterfly's wings.
The moral being that a chaotic system is fundamentally unpredictable in detail, and can only be predictable in averages and aggregates. (So we can predict climate, but not weather.)