An event that only happens once can have a probability (before it happens): this probability represents the uncertainty present in your model of why that event may happen. It's really a property of your model of reality, not a property of the event itself.
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But that doesn't mean your model is worthless. Surely we all have the experience of writing a large piece of code and having it work on first try.
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Due to nuclear tests being banned, new designs of nuclear warheads are being developed entirely via simulations -- which works (probably?) because our model of physics is pretty reliable.
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End of conversation
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I never thought I’d see a description of statistical modelling with Donald Rumsfeld quotes, but you’ve done it my good man. Surely there’s a prize for this sort of thing from someone or some organisation. Marvellous! Oh and I love the note, I agree with your points.
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Hæ hæ! Now we're getting deep
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So you can’t model what you don't know you don't know. For the dumb ones like me
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