It's interesting because Hammock driven development seems to be a way to defend idleness by trying to appeal to the workaholic ethic. You can take a break because this will lead to better results in the end. Not just because you want to, or because you don't want to work all the time all your life. It has to have a purpose in the end, that will be something bigger than just simply working. He also exhausted some of his reserves of money this way, making him more dependent on future work.