Would not be at all surprised if these novel social conditions stem from not going outside enough and from poorly ventilated buildings (especially gyms and conference rooms) and transport (planes trains and automobiles each routinely exceed 1000 ppm from everybody’s lungs).
If the person you replied to wrote their anecdote about their nephew in a book, would you find it credible then?
It seems like a plausible theory.
E.g. it looks like autism wasn't defined as a spectrum in the DSM until either 1994 or 2000: https://www.spectrumnews.org/news/evolution-autism-diagnosis....
Homosexuality was considered a disorder in the DSM until 1974. Self-reported rates of homosexuality have skyrocketed since then. Most likely explanation is that the true base rate has not changed, just society's measurement of it.
Children with ASD in prior generations were labeled as delinquent, troublemakers, retarded, or were abandoned by their parents and communities.
> and we know the base rate is about 10%.
Sinister.
I think it would be cool to be left-handed in a country where the language is written from right to left.
A dexterous response, to be sure. ;)
I find it interesting that the rates of a whole bunch of these uncommon-but-still-prevalent differences seem to cluster around 10%. I can't help wondering if it stems from prehistoric humans living in small group of 20-30, so each band would have on average 2-4 of each, giving the group a wider range of capabilities than they would otherwise have.
I'd like to hear a more detailed explanation on how you feel it overrides compensatory mechanisms in ventilation, with subsequent breakdown in metabolic compensation of acidemia, and how you override negative feedback loops in the RAAS system including inhibition of ANP excretion, unless you theorize it is blunted at the renal level and natriuresis becomes down regulated in this scenario.
Or basically if you want to reframe how everyone sitting in a house has subclinical SIADH I would be eager to hear a more detailed explanation.
The co2 level indoors is decided far more by whether you have the windows open (or perhaps if you're cooking) than whether you have people living close by to you.
Every time when I drive to anywhere, I am surrounded by five lane stroads.
By removing all these spaces for cars, you could add back in green spaces. Houses with backyards can still exists, but they will be closer together. Parks will be closer and more accessible.
Plus you can design buildings to have green spaces, or at least support plants. Special consideration would be needed to make rooftop of buildings green, especially when you have to consider the weight and wind.
Space efficiency in urbanism is the key to reclaiming green spaces in our urban context.
The issue isn’t the higher amount of CO2 in the ambient air in the cities (AIUI it is; marginally; but it doesn’t matter); it’s that CO2 is very good at concentrating in enclosed spaces.