Well, damn it. I'll be dead by then I suppose. I'm 47 and I suspect life is going to begin to become quite difficult between now and 42 years from now. I'd have to live through all of it to be 89 years old if your prediction bears out.
I suppose I could offer my official prediction for the point at which I believe that mere proles such as us will no longer be able to access gasoline either due to price or shortage. That point, I believe, will be the year 2040, or 28 years from now. I base my prediction on a combination of rate of depletion and ELM - along with some other incidental factors. And it's a good date for me because I think I can manage to last the long if I don't get shot, hit by a fryer oil-powered truck, or taken by some nasty virus. Yes, I want to be around to witness the "official" end of The Oil Age.