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>Unless you can scientifically prove that ethnicity causes crime to happen, its disgusting. This is obvious to us.

Whether or not ethnicity is a causal factor is irrelevant. Even if it is a causal factor, it is still an injustice to act on it.

And if you didn't care about justice and just wanted to achieve an optimal prediction, whether or not it's a causal factor doesn't actually matter. Probability theory does not require a causal link.

"If it is rainy then it is cloudy." Is a valid inference despite the fact that rain does not cause clouds.

> "If it is rainy then it is cloudy." Is a valid deduction

It is not, at least locally (because sunshowers happen.)

I thought I could sneak that fix in before anyone would notice. Yes, it's a valid inference, true with a high probability, but not a probability of 1.

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