Yes, it fascinates me the paradox that while Heath is acting his heart out to be Ennis, he's actually falling in love with Michelle, and while Jacob is acting his Jack to Heath's Ennis, Jacob is bemoaning his breakup with Kirsten Dunst......The sledding scene may symbolically suggest a downward spiral for Ennis and Alma, but the scene is also one of spontaneous joy, and possibly a reminder that Ennis does have the ability to be happy with Alma, IF it had not been for meeting Jack!