Talk:Scarlet/@comment-14722-20151004214529/@comment-24891101-20151006205221

Live:

Sex is what's between your legs; it's physiology. It's also binary: male and female. Intersex is an error case where one has ambiguous or malformed genitalia.

Gender refers to a few different things, and is therefore confusing. There is gender identity and gender roles. Gender roles are what society expects of each gender: man as protector, woman as nurturer, all that stuff. Gender identity is one's neurological gender. It's programming. This is perhaps rather less cut-and-dry, because it's not obvious. Non-binary people are likewise some ambigious state of gender identity. It's arguably an error state as well (not that is affects their human dignity, merely something that's not really supposed to happen).

During development, anatomy and neurology develop at different times. This means that if something odd happens, there can be a mismatch. In about 99% of cases, one's gender identity and sex match. But there are cases where this is not so. These people are trans. It can also happen that something goes wrong when building them; this results in either intersex or non-binary people.