# Re: Many Pasts? Not according to QM...

```Saibal Mitra wrote:

```
`Quoting Stathis Papaioannou <[EMAIL PROTECTED]>:`
```
> On 25th May 2005 Saibal Mitra wrote:
>
> >One of the arguments in favor of the observer moment picture is that it
```
```> >possible observer moments on which a measure is defined (which can be
> >calculated in principle using the laws of physics), then the paradox
> never
> >arises. At any moment you can think of yourself as being randomly drawn
> >from
> >the set of all possible observer moments. The observer moment who has
> >survived the suicide experiment time after time after time has a very
> very
> >very low measure.
>
> I'm not sure what you mean by "the paradox never arises" here. You have
> said
```
> in the past that although you initially believed in QTI, you later realised
```>
```
> that it could not possibly be true (sorry if I am misquoting you, this is
```> from memory). Or are you distinguishing between QTI and QS?
>
```
That's correct. In both QTI and QS one assumes conditional probabilities. You just throw away the branches in which you don't survive and then you conclude that you continue to survive into the infinitely far future (or after performing an arbitrary
```large number of suicide experiments) with probability 1.

```
But if you use the a priori probability distribution then you see that you the measure
```of versions of you that survive into the far future is almost zero.
```
```
```
What does "the measure of versions of you that survive into the far future is almost zero" actually mean? The measure of this particular version of me typing this email is practically zero, considering all the other versions of me and all the other objects in the multiverse. Another way of looking at it is that I am dead in a lot more places and times than I am alive. And yet undeniably, here I am! Reality trumps probability every time.
```
--Stathis Papaioannou

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```
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```
```