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Although I claim not to be interested in milometer events, I can’t help but note that I have just completed 900 posts, something which has involved me in writing 771,844 words which have been blessed with 818,301 page-views and 2,391,692 comment words. Thanks for reading, and for commenting.

In the spirit of any investment prospectus, I can claim an increase in efficiency, using what I hope can be accepted as the appropriate metric: page views per post.

2016 216
2017 4,674
2018 5,119
2019 9,660

Now I must go off and write more words. I must first to complete an update on the world’s IQ, but you can give me an indication as to which of these open tabs I should write about next:

The evolution of memory span
IQ and income
Evolutionary significance of human sex differences
Predicting educational achievement from genomic measures and socioeconomic status
Bias bias in behavioural economics
The causal influence of brain size on human intelligence: Evidence from within-family
phenotypic associations and GWAS modeling
Measuring sex differences and similarities
Recent Polygenic Selection on Educational Attainment and Intelligence Inferred from GWAS Hits

Or indeed other subjects. Thanks for reading.

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  1. I vote “Bias bias in behavioural economics” because even I don’t know what this is.

    • Agree: Tusk
    • Replies: @res
    , @James Thompson
  2. dearieme says:

    Warm congrats, doc.

    I am becoming interested in the decline of cognitive function in old age. If there’s anything on that topic that you think might interest enough of your readers, do please have a stab at it.

    Supporters of the Democrat party in the US have particular reason to take an interest, obvs.

    • Replies: @res
  3. Patriot says:

    All of it is fascinating. However, and slightly off the topic of IQ, I’d like to see someone do a factual data-based r vs. K, life-history analysis of tropical vs. temporate-evolved human groups. For example, have pygmies and hot rainforest races really evolved short, fast, high-fecundity life-histories? How has this influenced IQ and emmotional/personlity/social/reproductive traits?

    For example, what are the sexual maturation, gestation times, and birth weights for pygmies vs Eskamos, etc.?

    • Replies: @res
  4. res says:

    That’s a good topic (as are the topics Dr. Thompson proposed). Here is a 2018 paper from Ian Deary that looks like a good start:
    Cognitive function trajectories and their determinants in older people: 8 years of follow-up in the English Longitudinal Study of Ageing

    I can’t believe the Democrats are seriously considering candidates who would be 78 or 79 at inauguration.

  5. res says:
    @Emil O. W. Kirkegaard

    Gerd Gigerenzer wrote a paper about it. Sounds like a win to me.

    • Agree: Dieter Kief
  6. An investigation into ‘Bias bias in behavioral economics’ would be especially interesting.
    The Economist magazine and Visual Capitalist website are especially keen on the economic dominance of India and more recently Indonesia in the near future.

    What difficulties face large countries with low average human capital in implementing technological innovation and increase GNP in their economies?

  7. res says:

    Are you familiar with Rushton’s work?

    • Replies: @Patriot
  8. dearieme says:

    Thanks, res.

    Adenauer was Chancellor of West Germany until he was 87. But none of the collection of crooks, codgers, and calamities that the Dems are likely to select is comparable to that shrewd old bird. Nor would any of them have someone at their elbow of the quality of Erhard.

    Were I a Dem I’d go for Tulsi Gabbard – she seems to have her head screwed on and looks pretty healthy. She therefore doesn’t have an earthly unless Trump bags her as his running mate.

    I must say the idea of the US becoming a gerontocracy is an interesting one.

  9. Patriot says:

    Yes, thank you, I am familiar with Rushton’s work.

    But I am having a difficult time finding some basic data, such as average age of 1st birth and age specific morality rates if pygmies and Eskimos.

    I suspect that someone has collected such data, but I don’t know how to access them.

    • Replies: @res
  10. res says:

    Thanks, dearieme. Do you have a sense of how well Adenauer was functioning at the end of his time as Chancellor? Was it like Reagan’s last years as president (77 at the end of his term, and he was definitely impaired by then) or did Adenauer hold up better even though he was a decade older? Good point about Erhard as well.

    Tulsi Gabbard is interesting and does seem like one of the more sensible Democrats. I am hoping she at least makes it to the debates. If she won she would be 39 at inauguration so the youngest president by four years.

    I must say the idea of the US becoming a gerontocracy is an interesting one.

    It’s especially odd coming after Clinton and Obama having been two of the youngest American presidents (with GWB only 7-8 years older at inauguration).

    One bit of trivia is that if Bernie or Biden become president they would be the only president from the Silent Generation (born 1925-1945) after four younger baby boomers.

    • Replies: @dearieme
  11. res says:

    I don’t know if Rushton studied those specific groups, but his work would definitely be the first place I would look.

    If you are willing to pull together different sources of information you can probably find some of the data you are looking for. For example, here is mortality information for Alaska Natives (I assume roughly the same as Eskimos):

    Pygmies are difficult because records aren’t that great (as I believe is true for much of sub-Saharan Africa). For example, from this paper:

    Walker et al.25 related the fast child-juvenile growth in pygmies to juvenile mortality, but, no source is given to support high mortality in the juvenile period; Yamauchi et al. do not give any information about mortality. Mortality rates are very difficult to obtain, first of all because the real chronology of individuals is unknown: even at Bosquet, the estimated age of individuals older than 25 is uncertain and the uncertainty increases with age. Mobility also adds to the difficulty of building up reliable records. If we consider the few records and oral communications available from Bosquet, high mortality mainly seems to concern infancy and early childhood.

    • Replies: @songbird
  12. dearieme says:

    Do you have a sense of how well Adenauer was functioning at the end of his time as Chancellor?

    I don’t. If the British newspapers of the time had alluded to his being senile it would have been in a way sufficiently subtle to have escaped this teenage boy.

    • Replies: @byrresheim
  13. @dearieme

    There is no indication he was senile.

    However, beyond 85 most men are past their prime and so was he. That was probably the main reason for his downfall: the struggle was too fierce for even an outstanding octogenarian.

    Heinrich Lübke or August Zinn were senile indeed and contemporary records were quite tactless about it, (Zinn being “only” Ministerpräsident of a Bundesland you will find less material about his health problems) so one can safely assume people would have been equally heartless with Adenauer, had he had the same problem.

    • Replies: @songbird
  14. Thilo Sarrazin wrote about Adenauer recently. He is glad about the politics and consequences of Adenauer’s politics and thinks, that Adenauer indeed did a great job. There is a long tradition in the German culture to look at the ability to reduce problems to their core without damaging the complexity, that comes along with those problems. – Famous Reichswehr Commander in Chief Hammerstein von Equord loved to muse about such problems. His simple solution to Hitler taking over power was – to resign instantly. – Turned out, that this was quite right (cf. Hans Magnus Enzensberger – The Silences of Hammerstein – great book, fantastic read).

  15. @Emil O. W. Kirkegaard

    It is the tendency to assume that human are easily biased in their judgments, and that their perceptions are hopelessly irrational, as shown by cunning tests of reasoning. Gigerenzer has a more accurate perception of human abilities, in my view.

  16. @res

    Anybody who’s not getting any younger will be interested in this.

    Has anybody devised a way of assigning a wisdom quotient?

    • Replies: @res
  17. res says:
    @Driveby Commenter

    Anybody who’s not getting any younger will be interested in this.

    Agreed. A discussion of the physical side might also be of interest. For example:

    Has anybody devised a way of assigning a wisdom quotient?

    Here is one attempt:
    Not rigorous enough to work with in a quantitative fashion.

  18. songbird says:

    The current prime minister of Malaysia is 93 going on 94.

  19. songbird says:

    According to Dutton, Rushton was something of a cad, both in his private life and by the contention that he fudged some of his data, in order to make it fit neatly together. I haven’t really delved deeply into it, but, if true, it is something of a disappointment for me.

    I had admired the refined and soft way that he spoke. Very much like Jared Taylor, to my mind.

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