I have never been able to get my head around the idea that the causal chain fizzles out into quantum randomness. ...
Why would quantum randomness not be an impression from having too little information as well?
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Message 1:
... If you flip a coin its fall is determined by such a large number of factors that no human can predict the outcome. ...
If we consider 'Brane theory and additional dimensions, is it not feasible that quantum randomness is actually a multi-dimensional phenomena that appears random in our sector?
It's turtles all the way down ...
We use probability statistic calculations to predict probable quantum behavior, and I would think that other apparently random behaviors can also be enclosed in probability statistical calculations for making practical assessments of apparent randomness ... such as coin flips.
There is a point where the application of such methods produces a more practical resolution in terms of time and energy than in following the causal chain.
We don't (yet) know all the causal variables for Hurricanes, but we can make practical predictions, updating them continually, in order to take practical preparations.
Enjoy.