Let me pose the puzzle like this, which is a form we have discussed before:
Suppose you found yourself extremely old, due to a near-miraculous set of circumstances that had kept you alive. Time after time when you were about to die of old age or some other cause, something happened and you were able to continue living. Now you are 1000 years old in a world where no one else lives past 120. (We will ignore medical progress for the purposes of this thought experiment.) Now, one of the predictions of QTI is that in fact you will experience much this state, eventually. But the question is this: given that you find yourself in this circumstances, is this fact *evidence* for the truth of the QTI? In other words, should people who find themselves extremely old through miraculous circumstances take it as more likely that the QTI is true? Hal Finney
