Quote from: sonson on April 21, 2015, 05:14:17 PM
huh, this is very interesting to me. I pretty much said the exact opposite in the previous page. I believe that, from an evolutionary standpoint, the fact that we exist is highly extraordinary.
I'd love to read more into your views on this, im very open to changing my perspective. could you send a link to the picture you attached? I dont think you're able to post it since you're still new to this forum.
First off, I do understand where you're coming from with the probability being extraordinarily low. I'm happy to explain where I'm coming from. I don't think that I'm allowed to post links but if you Google "normal distribution" or "bell curve," you'll see images of what kind of looks like the first part of a sine function - or like a a symmetrical "bell." The center is the peak, and is the point of division. You can think of it being bisected directly through the peak. We'll say that the right side is for women and the left for men. Within one standard deviation from that peak in both directions, you encompass 68% of the population. So, we'll say that at least 68% of the population is either male and men or female and women. Now, we know that the sex ratio is about equal so, this makes sense, but we also know that most people are cisgender so, we'll go out to two standard deviations. This now encompasses about 96% of the population. The estimates for the percentage of the world population that is either transgender or non-binary are between 1%-5%. So, the remaining 4% that is mostly encompassed by that third standard deviation is numerically consistent with that estimate. We can then say that it's plausible that about 2% of the population is female and either men or non-binary, and about 2% is male and either women or non-binary.
I like math... Hopefully that made sense...
Moving on to evolution (I'm actually an evolutionary scientist, haha), there is a thing called "intraspecific variation," that is, variation that exists within a species. In our own species, height could be considered a type of intraspecific variation. In large populations (like humans), the number of "morphs" or types of intraspecific variation typically follow a statistically normal distribution, wherein the majority of members exhibit one or two morphs (for example, a sex-based gender binary...), but there are the "tails" on either side of the bell curve that encompass that remaining ~4%. Over time, if a "morph" is selected against because it is less successful (for example, a brightly colored moth that gets eaten by predators more than a darkly colored one), it will most likely be eliminated from the population because enough of them won't survive long enough to reproduce. However, if that morph does not necessarily result in a loss of reproductive fitness, and especially if there are times in which that morph is favored, you will maintain that variation in low numbers within the population.
As I mentioned in an earlier reply, there is nothing inherent to being transgender that makes us less reproductively "fit" than someone who's cisgender *unless* either society directly intervenes to curb our reproductive potential and/ or the majority of the population fails to reproduce. Now, the obvious problem with this logic is that I'm treating being transgender as equivalent to being tall or having blue eyes. While it may eventually turn out to be the case that this equivalency works, there's currently no support for it. There is, however, support for transgender people being neurophysiologically different from cisgender people, possibly due to genetics (which would support the above) or possibly due to hormone exposure during gestation (currently favored but I suspect some degree of heritability).
There are really no studies as far as determining whether or not the biology of being transgender is actually heritable but I suspect that there is given that we have been maintained through time. Based on this, I find it likely that, for example, if two transgender people were to have a lot of kids (and I do mean *a lot*) together, that one of those children would also be transgender. I would also not be surprised if historically, transgender people whose identities were suppressed by society were also more likely (if straight) to couple with one another (because presumably, the straight woman living as a straight man would be more attracted to someone who was actually a straight man living as a straight woman than to an actual straight woman, and vice versa), thus maintaining the genetics. But again, no studies so, this is purely scientific and statistical speculation.
Anyway, I don't know if that made sense? Also, sorry for writing a small book but I think about this stuff a lot... I'm also very much against the "some event "caused" a person to "turn" trans" and "gender doesn't exist" arguments so, that's definitely coloring my views on these matters.
I look forward to hearing back from you, and what your opinions are.