I was overjoyed with the Postponing Heat Death episode - in fact seeing it made me feel good about the universe, I was feeling rather despondent thinking our universe was going to go out with a whimper and in many ways couldn't think of a worse end than entropic heat death.
It is a tantalising possibility to 'intelligently' outsmart the universe and entropy, in fact hearing Isaac say this give me hope when there was almost scarcely none. It is, I believe, better to think that we can outsmart the universe than to think the universe has some kind of amazing, unlikely, natural destiny that saves us all. Now we are self-aware, have the ability to observe it and learn from it, we have the ability to make sure that Heat Death is not for us.
Well done Arthur - defeating entropy really is the Greatest Task of All Time!