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> The non-invertability is part of the problem, and he completely doesn't understand that. I get that invertibility means that you can't fully recover the orig
by josephcsible 4y ago
> The non-invertability is part of the problem, and he completely doesn't understand that.
I get that invertibility means that you can't fully recover the original racial percentage, e.g., that a 48/52 split and a 78/22 split will both look exactly the same, since (.48-.63)^2 and (.78-.63)^2 are equal. I don't see why that totally taints the entire dataset.