The idea of immortality or eternal youth is not a new one at all. For example, it's a characteristic of many religions that seek to define paradise. So I guess the torture/curse aspect is that all of your friends and loved ones would grow old and die around you, hence the popularity of vampire culture/books/fiction because vampires can beget "children" usually through an "embrace" of some kind (that's often sexually charged) and thus create a companion for the ages.
So the thing I started to think about basically has to do with sharing a human experience with others. Is there nothing of value if it can't be shared? Eternal youth just means a person has virtually unlimited time. But what if we changed the situation a bit and made it unlimited money? Is essentially unlimited money worthless if it can't be shared? What about unlimited food? Or unlimited power? Is there no value to some supply even if the rest goes wasted?
What do you guys think? Do we need limits on things in order to truly see them as a blessing? I remember an episode of Star Trek: The Next Generation in which the Q Continuum was so bored because they had everything that they could ever desire. I'd like to think that, if given the chance, and I were "cursed" with eternal youth that I'd somehow make the best of it, growing wealth over time to become a huge philanthropist to all mankind, to have enough time to read every single book ever written, and to have a body that doesn't suffer from aches and pains brought on by arthritis.
But maybe I should just see the movie in April and look at how the character Adaline deals with this supernatural curse. Or maybe she doesn't. Maybe she just ends up thinking everything is hunky dory.