So how do you quantify such things—what is the value of a positive memory? Your first instinct might be to say that it’s impossible to say, or that memories are priceless. But let me put it another way: What is the value to you of a week at a cabin on a lake? Or of a day with a beloved relative? The price might be extremely high or fairly low, but the fact that you can even propose a ballpark price says that the value of an experience can be quantified. (In fact, you might recall doing that with “experience points” in an earlier chapter.)