This brouhaha about gender identity requires some &#x27;fixed points&#x27; about gender that I thought we progressives had all already agreed were nonexistent!<p>But I don&#x27;t think the point about the author&#x27;s personal experience of not &quot;feeling like a girl&quot; proves anything - see &quot;cis by default&quot;, or <a href="http:&#x2F;&#x2F;slatestarcodex.com&#x2F;2013&#x2F;02&#x2F;18&#x2F;typical-mind-and-gender-identity&#x2F;" rel="nofollow">http:&#x2F;&#x2F;slatestarcodex.com&#x2F;2013&#x2F;02&#x2F;18&#x2F;typical-mind-and-gender...</a>. It&#x27;s possible that there are people who <i>do</i> feel strongly that their body doesn&#x27;t match what their mind is telling them, and it&#x27;s a cause of suffering. As I understand it, it really <i>is</i> all about sex in this case (which makes the author&#x27;s quip about her &quot;true self not having arthritic knees&quot; irrelevant).