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Rhetoric has been described as the art of persuasion. Used to its best effect, it can make what you say very convincing. In the age of non-stop tweets, news updates and digital distractions, discourse feels like it鈥檚 become more immediate, less considered and, often, more aggressive. What should be reasoned rhetoric now often deteriorates into the quest for the perfect putdown. In this week's Why Factor, Sandra Kanthal finds out why, in the age of the 280 character polemic, it could be useful to learn more about the ancient art of rhetoric, and how this is yet another arena where machines may have an advantage over humans.

Image: A statue of Aristotle (Credit: Getty Images)