Also makes the (dubious?) claim that marginal increased cost of caring for an autistic child is less than marginal likelihood for increased combined salary.
Moral of the story: make babies outside of your own ethnic group.
That is absolutely the wrong conclusion to make from the source. The suggestion of the source is that if two people prone to systemized-thinking mate (regardless of ethnicity), then the likelihood of autism is higher.
Your conclusion only makes sense if you believe certain ethnicities are more systemized than others. Thus, if you are from a systemized ethnicity, you should seek to mate outside your race. I don't think that is your intent. My inference is that your intent was to take this research and form some moral lesson out of it that fits your world view, or a world view that is fashionable.
More off-topic, I find it creepy when I meet couples who look like each other and have a string of identical children.
I bet you already knew this is what I meant and didn't actually need me to spell it out for you. As an aside, I read elsewhere that you and your wife are both from Western Europe. That's actually a lot closer than I had in mind; I said breed with someone who really doesn't look like you. :)
I'm [genuinely] curious: do you find it creepy only for similar-appearing couples in your own race/ethnic group? Assuming you're not Japanese, for example, would you have that reaction to the sight of such a Japanese family?
This is not meant as a pejorative. My guess is that such a bias is probably common _within_ a race/ethnicity, but much less so when viewing couples/families of other races.
No, you should not: http://www.sciencedaily.com/releases/2008/02/080207140855.ht...
For example, for women born between 1800 and 1824, those with a mate related at the level of a third cousin had an average of 4.04 children and 9.17 grandchildren, while those related to their mates as eighth cousins or more distantly had 3.34 children and 7.31 grandchildren. For women born in the period 1925-1949 with mates related at the degree of third cousins, the average number of children and grandchildren were 3.27 and 6.64, compared to 2.45 and 4.86 for those with mates who were eighth cousins or more distantly related.
The autism rates in the Iceland are not that high, being 1.2% (Korea has twice as much autists as Iceland with their 2.6%): http://leftbrainrightbrain.co.uk/2013/07/05/autism-prevalenc...
I don't feel like that's necessarily a strong argument even if you don't think the world is going to have population problems, but if you do, that would be a pretty strong negative
If you marry to not have a child, or your priorities structured rather differently, my argument is null.
I'm not so sure... I recall reading that there's a link between autism and parents of mixed ethnic background (sorry, don't have time to look up evidence right now).