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  1. Oct 2023
    1. It probably isn’t a coincidence that three is my personal sweet spot, according to Kurt Carlson, a marketing researcher at the College of William & Mary’s Raymond A. Mason School of Business. As far as I can tell, he’s the only person who has done significant research into why and how human brains sort things into groupings of three. “People believe they’re observing something special when they see the third instance of it happen,” he explains.