He multiplied two 10-digit numbers in his head, in just 7 hours

Computer access to a stack of photos can be used to boost one’s mental calculating ability, suggests this paper. Do pay attention to the thought in parentheses, at the very end of this quotation: “Multiplying 10-digit numbers using Flickr: The power of recognition memory,” Andrew Drucker [pictured here], 2011. The author, at MIT, explains: In […]