Tweaking language in the causes section

Trying to ensure people don’t interpret this as causitive or bio-essentialist.

public/gdb/causes.md

@@ -22,13 +22,23 @@ siblings:
 
 # What is the Cause of Gender Incongruence?
 
-Here is what we know today. If you've seen Jurassic Park then you may remember this scene:
+To put it bluntly: We don't know, not firmly. Science and modern psychology has proven that it is **not** caused by nurture; no one *becomes* transgender, gender identity is congenital, solidifying before we even exit the womb. It also appears to sometimes be hereditary; transgender parents have a higher likelihood of having transgender children, and many times they realize this in reverse. The child comes out to the parent, and that helps the parent realize they can come out as well.
 
-{!{ {{import '~/img' images.jurassicpark className="card borderless center span34" alt="All vertebrate embryos are inherently female anyway. They just require an extra hormone given at the right developmental stage to make them male."}} }!}
+Here is the science that is believed to influence gender identity. This does not mean that it *defines* gender identity, nor does it fully encapsulate one's gender, as so many aspects of gender are cultural and social. None of this is prescriptive of a person's identity, none of it is cast in stone.
 
-This isn't science fiction, though it is very dumbed down. In human fetuses, the gonads initially develop in a bi-potential state, meaning they can become either ovaries or testes. The SRY gene on the Y chromosome releases a protein called [Testis Determining Factor](https://en.wikipedia.org/wiki/Testis-determining_factor) (TDF). This protein then starts a chain reaction with SOX9 production (another protein), which causes the gonadal cells to form into the Sertoli and Leydig cells that make up the testes. If TDF is never produced or is interfered with then the gonad cells form into the Theca cells and follicles which comprise the ovaries.
+If you've seen Jurassic Park then you may remember this scene:
+
+{!{
+  {{import '~/img' images.jurassicpark
+    className="card borderless center span34"
+    alt="All vertebrate embryos are inherently female anyway. They just require an extra hormone given at the right developmental stage to make them male."
+    caption="This isn't science fiction, although it is very simplified."
+  }}
+}!}
 
 {!{ <div class="gutter flex" style="justify-content: center"> {{import '~/img' images.fetalgenitals className="card" caption="<a href=\"https://schoolbag.info/biology/concepts/188.html\">Source</a>" alt="Fetal development of internal sexual anatomy"}}</div> }!}
+The gonads in human fetuses initially develop in a bi-potential state, meaning they can become either ovaries or testes. The SRY gene on the Y chromosome releases a protein called [Testis Determining Factor](https://en.wikipedia.org/wiki/Testis-determining_factor) (TDF). This protein then starts a chain reaction with SOX9 production (another protein), which causes the gonadal cells to form into the Sertoli and Leydig cells that make up the testes. If TDF is never produced or is interfered with then the gonad cells form into the Theca cells and Follicles which comprise the ovaries.
+
 
 Once formed, the testes then begin producing a testosterone surge which typically starts in the 8th week of gestation and continues until the 24th week. This surge, [combined with another hormone from the placenta](https://www.sciencedaily.com/releases/2019/02/190214153053.htm), is responsible for the development of the penis and scrotum. Genitalia formation starts around week 9 and becomes identifiable by the 11th week. If the surge does not occur, or the body does not respond to it (such as in the case of Androgen Insensitivity Syndrome) then the genitalia form into the vulva, vagina and uterus instead.