It is a puzzlement: In a technologically advanced society, in which lifespan and standards of living have been improved by more than two centuries of post-Enlightenment scientific research, a Jenny McCarthy can become an influential figure in public health. Increasingly, people believe what they wish to believe, against all evidence, especially if someone with whom they can identify, whom they see as a sincere person, agrees with them.

via You Don’t Say: The bliss of ignorance.

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