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qmotus comments on The map of quantum (big world) immortality - Less Wrong

2 Post author: turchin 25 January 2016 10:21AM

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Comment author: qmotus 28 January 2016 04:09:42PM 1 point [-]

Because it's incredibly unlikely for anyone to live to be a thousand years old and equally unlikely whether MWI is true or not. There are worlds where we see maybe one such person, of course, but this just isn't one of them (unless you think that, say, Stephen Hawking keeping on living against all odds is evidence of QI).

Comment author: Lumifer 28 January 2016 04:16:32PM *  0 points [-]

Because it's incredibly unlikely for anyone to live to be a thousand years old and equally unlikely whether MWI is true or not.

Under QI, doesn't everyone live to be a thousand years old and more?

There are worlds where we see maybe one such person, of course, but this just isn't one of them

Human longevity looks to have a pretty hard cut-off at the moment. We don't see anyone 150 years old, too.

Comment author: qmotus 28 January 2016 05:03:35PM 0 points [-]

Under QI, doesn't everyone live to be a thousand years old and more?

Think of it like this: MWI makes the exact same predictions regarding observations as the Copenhagen interpretation, it's just that observations that are incredibly unlikely to ever happen in CI happen in a very small portion of all existing worlds in MWI. QI does not change this, which means that everybody does live to 1000 in a small minority of worlds, but in most worlds they die in their 120s at the latest. Therefore you're very unlikely to see anyone else besides yourself living miraculously long.

Comment author: Lumifer 28 January 2016 05:12:28PM *  0 points [-]

MWI makes the exact same predictions regarding observations as the Copenhagen interpretation

I don't believe the Copenhagen interpretation expects me to live forever.

Out of curiosity, have there been attempts to estimate the "branching speed" under MWI? How many worlds with slightly different copies of me will exist in 1 second?

Comment author: qmotus 28 January 2016 05:24:49PM 0 points [-]

I don't believe the Copenhagen interpretation expects me to live forever.

It does not. There's the difference. But if someone looks at you from the outside, the probability with which they will see you living or dying is not affected by quantum interpretations.

As to your second question, I don't know. QI as it is presented here is based on a pretty simplistic version of MWI, I suppose, one which may have flaws. I hope that's the cased, actually.