"Machines are neither Republicans nor Democrats and therefore can never be consciously or even unconsciously biased."

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The smartest groups, then, are made up of people with diverse perspectives who are able to stay independent of each other. Independence doesn't imply rationality or impartiality, though. You can be biased and irrational, but as long as you're independent, you won't make the group any dumber.

— James Surowiecki