He says his name is Jack but as it turns out his name is not Jack and many other things he says about himself turn out not to be, in the strictest sense, true. However, his real name also begins with J and is four letters long, so is it a lie, really? He doesn’t seem to think so, so you decide not to, either. How much of what someone says is supposed to be true, anyway? How much of the truth do you really need to know?