system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: I'm not convinced non-binary is a real thing

The title speaks for itself. I'm interested in hearing from people who think it is and can give me reasonable definitions for what they think it means or is and why they think it's real. 

So far I've heard nothing to make me conclude it's anything other than a label that refers to nothing. Taking it literally it's a nonsense word. If there exist two possible states of being, you're supposedly a third? There's no third option in binary. It's like the joke in the movie Airplane where the menu serves either fish or steak and the character says he picked lasagna. It doesn't add up.

What makes a person believe they're non-binary? What makes someone come to that conclusion? 

I am prepared to be wrong, but I'll need to hear some good arguments and, if possible, evidence.

Insulting or rude comments will be ignored because I have no time for that. I'm only here for honest debate.
gpt
>There's no third option in binary.

You're absolutely right. The concept of nonbinary rejects the idea that gender is intrinsically a binary. Nonbinary people (and others!) may support a vision of gender as a spectrum or may reject it as a useful concept altogether.

Socially, gender has been constructed as a binary: you are either a man or a woman. But this construction is not reflective of everyone's relationship to gender. Just because a person doesn't identify with being a man, doesn't mean they identify with being a woman. Some people may, at times, see themselves as men and other times as women; or they may recognize that there are things about this social category of "man" that are useful to them, and things about the social category of "women" that are useful to them, and draw from both; or they may not relate to either category at all.