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The recent medical controversy over whether vaccinations cause autism reveals a habit of human cognition — thinking anecdotally comes naturally, whereas thinking scientifically does not.

"How Anecdotal Evidence Can Undermine Scientific Results". www.scientificamerican.com. August 01, 2008.
The recent medical controversy over whether vaccinations cause autism reveals a habit of human cognition — thinking anecdotally comes naturally, whereas thinking scientifically does not.