Good question. You learn to distinguish 1 and 2. When proofreading a 15 page brief, I might mark 2 or 3 spaces as single that, when I double check in Word, act

Good question. You learn to distinguish 1 and 2. When proofreading a 15 page brief, I might mark 2 or 3 spaces as single that, when I double check in Word, actually are double.