Assume we are entering a huge maze, enormous both in terms of its length and the number of choices required to finish the course. After a few feet, we must make our first decision. We may have only two ways to go, or there may be multiple choices available. A glance into each allows only a few feet of visibility, not really enough to know if it is the right choice. But, we must choose and move on. When we do, we soon discover whether our hunch was correct or if we are at a "dead end". If the latter is the case, we must return to the previous decision point and start over. If we are correct, we soon end up at another intersection, requiring another choice. This goes on and on. We find ourselves frustrated with the number of decisions and the time it takes to correct our errors. Sometimes, it feels like we are not making any progress and we begin to think we never will find our way out. Now, what if we entered the maze with a cell phone and an app that provided an overhead picture of the maze? Whenever we came to an intersection, we could consult the picture and see what the screen reveals. And we find the