[ExI] Population growth & Life-Extension

Ben Zaiboc ben at zaiboc.net
Fri Aug 27 16:24:17 UTC 2021

On 27/08/2021 17:02, Adrian Tymes wrote:
> On Fri, Aug 27, 2021 at 2:25 AM Ben Zaiboc via extropy-chat 
> <extropy-chat at lists.extropy.org 
> <mailto:extropy-chat at lists.extropy.org>> wrote:
>     Graph showing effect of life-extension on population growth:
>     This assumes that extreme longevity will reduce the desire to have
>     children, which seems a reasonable assumption, given the usual
>     real reason for having kids (to look after you in your dotage).
>     Note the extreme difference between having an average of 2.5 kids
>     and 2. Note also that 2 kids per couple is no longer 'replacement
>     rate', as there is no death. Of course there still would be, but
>     from accidents etc., not from ageing.
> True, the usual reason would go away - but with no death, people with 
> other reasons would have a lot longer to have and raise kids.

Ok. So how much would that affect things? Would it negate the benefits 
of life-extension?

I realise we don't know the answer to that, but is it a reason to say 
"No, let's not bother with life-extension, it won't help"?


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