Here is another side of the coin. Some ideas might seem silly. In fact, some actually are! But let's say a couple of them make it and turn a profit. Did the idea change the world? Maybe a little. If that much. Here is the kicker: The idea will probably have changed someone's world for the better. You don't need to go out and change the world itself. Sometimes its enough to improve somebody's world. Who knows? Maybe its one of those uber drivers Ive met who have fallen into hard times and are driving a car around to support their families. Not world changing, but important. And uber, when you think about it, is a simple app where you request a car to pick you up. It has not resulted in world peace. But is definitely keeping some people from going hungry.