The Power of Commitment Devices

In chapter three, you talk about one potentially powerful tool to keep our procrastination tendencies and pay commitment devices. You can choose to deliberately impose constraints on yourself in order to achieve certain goals. But despite some evidence that it can help, commitment devices often fail to attract demand. So the fact of this limits their ability to generate any impact,. And so how do you understand this failure? And do you think that this is a self-control strategy that... maybe it's time to move on and you should study something else? Or do you feel like there is still a lot of things that we don't understand that we need to better investigate?