I don't think addiction and Huntington's are quite in the same category. Huntington's is uncontrollable, no matter what you do; no cure, no treatment, no management, no nothing. I agree that addiction itself is not a choice and that some people are genetically more susceptible, but I think there is still a degree of choice involved. There are enough brilliant artists who have gone through it and come out alive (Dylan among them) to support that. It's miserable and it's a Hell of a lot of hard work, but it's not the guaranteed death sentence that is Huntington's.

I mostly felt terribly badly for J.T. He seems to have mostly turned out OK (must have had a very sane mother) and had a lot of very thoughtful and well-considered things to say, but I felt badly that his father was essentially lost to him when he was so young. Worse than lost, almost, if he was calling his mom in the middle of the night to come get him because Townes was out of control.