: With the incredible technology that we have today, why is it still impossible to have 100% accuracy on predicting the weather?
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Because unless you have the technology to fully and completely simulate the *entire world and everyone/everything in it*, it’s functionally impossible to accurately predict the weather something like a few months into the future.
This is because weather is something called a “chaotic system”, or colloquially called “the butterfly effect”, where every tiny gust of wind bumps into every other tiny gust of wind, which keep bumping into each other, over and over, eventually reaching a point where you can’t say much about where the air is moving. So if you missed one tiny gust of wind in your calculation, one eddy current off an airplane, even something as small as the wingbeat of a butterfly, (this is why it’s called the butterfly effect) then you’ll lose accuracy on your prediction within a month or two.
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