First, there is the stuff about how to classify CAIS and there is discussion within this thread about the dev bio, endocrinonlogy etc.
@WackyPidgeon@JamesVSD1@zaelefty@JuliaMasonMD1@madadhruadh@hoovlet I have never hidden my developmental biology understanding of sex, which is centred not on chromosomes (or any other determination mechanism) but on gamete type, which is in animals a product of gonad type.
Babies with CAIS are observed female. They are brought home as girls. They are treated like girls, and all that entails in a gendered world - the extensive socialisation, the risks, the expectations.
@WackyPidgeon@JamesVSD1@zaelefty@JuliaMasonMD1@madadhruadh@hoovlet@OwnerOfIdeas Sex-selective abortion, FGM, infanticide, nutritional and educational neglect, becoming child brides, being kidnapped by Boko Haram, being abused and raped, being shot at their college by an armed incel who hates women. We all know the lists.
@WackyPidgeon@JamesVSD1@zaelefty@JuliaMasonMD1@madadhruadh@hoovlet@OwnerOfIdeas Male entitlement doesn’t originate in a Y chromosome or internal testes that don’t ‘do their job’. Male entitlement (and the corresponding effect on female lives) is not innate, it is acquired during one’s formative years being observed as male or female. Because patriarchy.
@WackyPidgeon@JamesVSD1@zaelefty@JuliaMasonMD1@madadhruadh@hoovlet@OwnerOfIdeas I know people are concerned about ‘giving an inch’ as a slippery slope that ends with any male in female spaces. I don’t see it for CAIS. Because, ironically, nobody ‘sees’ CAIS women as male at any given moment or, importantly, *at any point in their lives*.
I recently tweeted about people who think I believe humans are asparagus.
This bad faith take stems (ha ha) from an analogy I’ve used to illustrate that the phenomenon of male/female is not limited to the constructions of the human brain.
Like many plants, and like humans, (some) asparagus strains are dioecious - they exist as individuals male and individual female plants. In animals, we call this set up ‘gonochorism’.
Asparagus can reproduce via the fusion of one small and one large gamete (sometimes, they reproduce asexually).
Biological convention denotes the plant morph producing the large gamete, found in the ovules, as ‘female’.
Systematic differences between the two sexes of a gonochoristic species of a physical characteristic (or set thereof), not including reproductive anatomy.
Some sexually dimorphic characteristics are non-overlapping (e.g. deer antlers) while some are very overlapping (e.g. human height).
The extent of overlapping observation/measurement is irrelevant. The only requirement is a robustly-detectable difference between sexes.
Many female humans are taller than many male humans, yet the population descriptions of height in humans consistently reveal that males as a sex class are taller than their demographically-matched female peers.
Height in humans is a sexually dimorphic characteristic.
@xandvt@MumpGorithm@refined_devon@BBCMorningLive@BBCiPlayer I am honestly appalled by your behaviour here. You are a medic and a public communicator, and you seem unable to use basic and commonly-understood words when discussing concepts like population health screens.
@xandvt@MumpGorithm@refined_devon@BBCMorningLive@BBCiPlayer The WHO make it clear that an ethical population screen uses clear language that will maximise capture of the target demographic. Who are the target demographic for prostate screens?
@xandvt@MumpGorithm@refined_devon@BBCMorningLive@BBCiPlayer To define the population demographic for prostate screening as ‘those with prostates’ lacks any explanatory value. It’s a linguistic dead end. Replace ‘prostate’ with a less well-known structure, and then consider how effective a screening campaign will be….
@tomhfh Tom. Promise me you will never teach statistics.
The graph you have posted clearly shows two overlapping normal distributions.
Each normal distribution is associated with either the female sex or the male sex.
@tomhfh As you correctly point out, short males are not female.
Yet a very short male may appear in the little area of overlap highlighted, because they are at the far left of the male normal distribution, not because they are magically ‘intersex’ or ‘a bit female’.
@tomhfh The X axis in the graph is not ‘sex units’. The graph is not mapping sex. It is a mapping schematically a characteristic associated with sex, like testosterone levels (in some concentration unit).
Sex is why you have a bimodal distribution of testosterone levels.
Grevenberg has proposed that advantage carried by transwomen into female categories of sport might be corrected by means of ‘staggered starts’. Taking a broad view, we’ll assume this means some kind of handicap applied to transwomen.
Usain Bolt’s 100m WR average speed was 10.44 metres per second. FloJo’s was 9.53 metres per second.
We could, on these stats, create a dead heat between the two by starting Bolt 109.52m from the finish (FloJo at 100m) or starting him 0.91 seconds later than FloJo.