[ExI] re end of world

[Rafal Smigrodzki]

On Thu, Sep 10, 2015 at 6:38 PM, Anders Sandberg <anders at aleph.se> wrote:

> What happens is that the new mean intelligence is 150+ (as by the old
> scale), turning into a new normal distribution. (I ran a quick Matlab
> test).
>
> What is going on is that the intelligence is due to a lot of genes adding
> about 1% or less each, so removing the <150 IQ population mainly removes
> some very bad genes and decreases the somewhat bad genes: there is still a
> lot of genetic diversity. So the new mean goes up, but the variance stays
> about the same.
>
> On 2015-09-10 23:15, William Flynn Wallace wrote:
>
>
>
> On Thu, Sep 10, 2015 at 4:46 PM, Mike Dougherty <msd001 at gmail.com> wrote:
>
>> On Thu, Sep 10, 2015 at 4:12 PM, William Flynn Wallace
>> <foozler83 at gmail.com> wrote:
>> > If all people with IQs below 150 became sterile, would the gene pool
>> that
>> > was left eventually create a population averaging 100 IQ?
>>
>> Yes, because the 'average' is 100.  That may be an order of magnitude
>> more capable, it would still be measured as 100.
>>
>> In order words, you would effectively lower the IQ of every survivor,
>>
>> "lies, damned lies, statistics"
>>
>
> ​ well, yes, I suppose I worded that awkwardly.  What I meant was, would
> the mental ability of the average person who survived eventually regress to
> the mental ability we now call IQ 100?  I don't know enough genetics to
> answer that. bill w​
>
>
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>
> --
> Anders Sandberg
> Future of Humanity Institute
> Oxford Martin School
> Oxford University
>
>
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-- 
Rafal Smigrodzki, MD-PhD
Senior Scientist,
Gencia Corporation
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