Will Oremus describes how Google autocompletes us. He writes that last month Google made its first attempt at applying Web-based, contextual spell-checking to a word-processing program and wonders whether spelling and grammar will become a lost art, similar to the ability to add, multiply or divide numbers in our head, or even on a piece of paper. Will spelling become more optional, he wonders, drawing a parallel to arithmetic. The heady problem lies in artificial intelligence. Oremus tells us why.