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document updated 14 years ago, on Oct 7, 2010
Popular preoccupation with bottom surgery reveals that many people believe there is one very-sharply-defined gender boundary — one that cleanly separates men and women into two halves, and that the only way to jump that canyon is via bottom surgery.

This is clearly wrong, of course. The gender binary is an artificial social construction, and even if people actively avoid thinking about it, non-binary identities really do exist.

However, if one were to suggest that since one boundary isn't right, that the correct answer is zero boundaries, they would be wrong again.