Close your eyes. Think about what you do every day, whatever you do. Now ask yourself, whose life is better because of what I did this week.Not what did I accomplish or what did I produce, but an actual life improved. We live in an extraordinary time. We can make someone tap a screen thousands of times a day.We can make people walk the extra mile to find the right recycling bin. We have mastered the science of changing behavior. But here's what I struggle with.We use all of our brilliance to treat symptoms ...