I would already be richer than Jeff Bezos if I had a dollar for each time I've thought, "Wouldn't it be great if I could do my math homework for me?" and a helper appeared immediately. I'm not the only one caught up in such wishful thinking, though, which is a shame. According to a 2014 Stanford survey, nearly 56% of students in a sample of over 4000 from high-achieving institutions in...