YOU ONLY USE 10 percent of your brain. Eating carrots improves your eyesight. Vitamin C cures the common cold. Crime in the United States is at an all-time high. None of those things are true.
But the facts don’t actually matter: People repeat them so often that you believe them. Welcome to the “illusory truth effect,” a glitch in the human psyche that equates repetition with truth. Marketers and politicians are masters of manipulating this particular cognitive bias—which perhaps you have become more familiar with lately. Full Article