> 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 h

> 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 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 http://movies2.nytimes.com/books/first/h/hoffman-man.html