I straight away thought of a Paul Erdos anecdote [1]:
"In 1970, I preached in Los Angeles on `my first two and a half billion years in mathematics.' When I was a child, the Earth was said to be two billion years old. Now scientists say it's four and a half billion. So that makes me two and a half billion. The students at the lecture drew a timeline that showed me riding a dinosaur. I was asked, `How were the dinosaurs?' Later, the right answer occurred to me: `You know, I don't remember, because an old man only remembers the very early years, and the dinosaurs were born yesterday, only a hundred million years ago.’”"
[1]: http://movies2.nytimes.com/books/first/h/hoffman-man.html
From the plot of the 1998 movie, Deep Impact: "MSNBC journalist Jenny Lerner investigates the sudden resignation of Secretary of the Treasury Alan Rittenhouse and his connection to "Ellie", supposedly a mistress. [...] she finds out that Ellie is really an acronym: "E.L.E." ("extinction-level event"). "
That's basically the plot to Planescape: Torment.
> I am, or was.
> There was once a man who lived for a very long time; perhaps three thousand years, or perhaps a thousand million years, maybe a trillion or so, depending on how the scientists look at it.
> “I am Eilie, and I am here to kill the world.”
> I have just been informed, that the debate over the question ‘is it right or wrong to have immortal souls’ has been finally brought to a conclusion.
> The purple-haired woman came to the clearing in the plain, and without looking up from her book, said, “It’s too late to be thinking about baby names.”
> The village of Pembrokeshire, in the county of Mersey, lies on a wide, happy plain, which, in a few years, was to become known as the “Land of the Endless Mountains.”
> I was playing with my dog, Mark the brown Labrador, and I had forgotten that I was also playing with a dead man.
> The black stone was aching from the rain.
> How many times have I had the misfortune to die?
> The first day I met my future self, I was aboard the old dirigible that lay in wait for me on the far side of the moon.
I could see a fascinating story starting with most of those lines.