Picture this. You are having your regular medical checkup, when, all of a sudden, the physician turns to you and says: “Oh, did I remember to mention that you can now live forever?” You look at the doctor enquiringly and she goes on: “Well, it’s not actual immortality, you know, but they’ve invented this treatment—I don’t have the full details—that stops aging, getting physically older. It might not be for everyone, but you seem to be a suitable candidate. You could (...) still die of accidents and illness, of course, but they’ve calculated that with care and any luck you should live to be a thousand, as opposed to the hundred or so that you would now have. And in a millennium, techniques will advance further, so there could be more in store for you after that.”. (shrink)