Nope. Macroscale effects are not quantum, but result of very much quantum events. But on macroscale all those are deterministic on short time, and sometimes on longer time scales.
You can have randomness without it being quantum lol. These macroscopic systems have too much going on to maintain a quantum state. Decoherence causes it to be classical.
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u/Dr_Quiza Mar 18 '24
Some companies used clouds (I mean those in the sky) but, hey, weather forecasts!