&gt;&gt; It&#x27;s already illegal for these algorithms to have discriminatory outcomes, even if they&#x27;re not deliberately designed in.<p>&gt; unbiased algorithms often discover that things we previously attributed to bias were actually unbiased predictors<p>That may be true, but Schneier is speaking on a different topic -- redlining. There&#x27;s a long history of people discriminating based on race, sex, class, etc. and pretending they&#x27;re using an unbiased algorithm instead. The word redlining comes from the practice of using geography to make decisions. It&#x27;s obvious to most people that geography is highly correlated with race and class. Therefore, even if geography itself carries no intrinsic bias, to use geography as a variable in evaluating credit-worthiness is discriminatory.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Redlining" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Redlining</a>