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gjm comments on Open thread, January 25- February 1 - Less Wrong Discussion

8 Post author: NancyLebovitz 25 January 2014 02:52PM

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Comment author: gjm 26 January 2014 10:29:46AM 10 points [-]

previous eras' low life expectancy was mostly due to high child mortality.

I have long thought that the very idea of "life expectancy at birth" is a harmful one, because it encourages exactly that sort of confusion. It lumps together two things (child mortality and life expectancy once out of infancy) with sufficiently different causes and sufficiently different effects that they really ought to be kept separate.

Comment author: TylerJay 26 January 2014 07:18:11PM 2 points [-]

Does anybody have a source that separates the two out? For example, to what age can the average X year old today expect to live? Or even at a past time?

Comment author: Lumifer 26 January 2014 07:33:42PM 5 points [-]

Does anybody have a source that separates the two out? For example, to what age can the average X year old today expect to live?

Sure, there is the concept of life expectancy at specific age. For example, there is the "default" life expectancy at birth, there is the life expectancy for a 20 year-old, life expectancy for a 60-year-old, etc. Just google it up.

Comment author: fubarobfusco 27 January 2014 07:11:26AM 1 point [-]

It's kind of important to the life insurance business ....

Comment author: TylerJay 26 January 2014 08:08:13PM 1 point [-]

Thanks. Interestingly, My numbers never matched up between any 2 sources.

The US SSA's actuarial tables give me a number that's 5 years different from their own "additional life expectancy" calculator.