When the day comes that it becomes really real and everyone from now on gets to live for a few hundred years. But, not you. You are already too old for it to work. Maybe if you led a much more healthy lifestyle. But, no. You get to grow progressively more decrepit while watching people younger than you not go through the same problems. Eventually you will die of it while they are still partying hard in their 80s and will continue to do so for two hundred more years. Good for them. Sucks to be you.