The correctness of this post has been disputed at length: [object-level reply](http://unremediatedgender.space/2018/Feb/the-categories-were-made-for-man-to-make-predictions/), [meta-level reply (part 1)](https://www.lesswrong.com/posts/esRZaPXSHgWzyB2NL/where-to-draw-the-boundaries), [meta-level reply (part 2)](https://www.lesswrong.com/posts/onwgTH6n8wxRSo2BJ/unnatural-categories-are-optimized-for-deception), [supplementary material on dolphins/whales](https://www.lesswrong.com/posts/vhp2sW6iBhNJwqcwP/blood-is-thicker-than-water)
Object-level reply: http://unremediatedgender.space/2018/Feb/the-categories-were-made-for-man-to-make-predictions/
The correctness of this post has been disputed at length: [object-level reply](http://unremediatedgender.space/2018/Feb/the-categories-were-made-for-man-to-make-predictions/), [meta-level reply (part 1)](https://www.lesswrong.com/posts/esRZaPXSHgWzyB2NL/where-to-draw-the-boundaries), [meta-level reply (part 2)](https://www.lesswrong.com/posts/onwgTH6n8wxRSo2BJ/unnatural-categories-are-optimized-for-deception), [supplementary material on dolphins/whales](https://www.lesswrong.com/posts/vhp2sW6iBhNJwqcwP/blood-is-thicker-than-water)
Object-level reply: http://unremediatedgender.space/2018/Feb/the-categories-were-made-for-man-to-make-predictions/