: 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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Perfect predictive accuracy would take several things:
Having 100% accuracy on knowing the current state of all parts of the atmosphere. (including any changes caused by measuring the current state of the atmosphere).
Having 100% accurate predictions on everything that influences the atmosphere(the sun has weather too, which can slightly change how much light/heat is hitting Earth). Also need to predict things like the impact of people, animals, plants, volcanoes, etc.
Having a mathematical model that perfectly captures the interactions of everything in the atmosphere, and everything that influences the atmosphere.
Having a computer that can run that mathematical model with enough resolution to simulate every atom in the atmosphere, and fast enough to outpace the changes in the atmosphere.
A way to send a personalized forecast to every person, based on where they plan on being.
At some point you’d reach a level of accuracy where sending people the forecast changes the outcome, and to improve from there you’d basically be engineering a self fulfilling prophecy.
A better prediction is always possible, but a perfect prediction is not.
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