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  • Out of 30,000 edible plants thought to exist on earth, just eleven account for 93% of all that humans eat: oats, corn, rice, wheat, potatoes, yucca (also called tapioca or cassava), sorghum, millet, beans, barley, and rye.

    Daniel J. Levitin (2014). “The Organized Mind: Thinking Straight in the Age of Information Overload”, p.42, Penguin