-"Um. Illustrative case studies are hard to come by. It's _rare_ for an accident to take out exactly the parts of the brain to leave the patient alive and yet demonstrate the functionality of some key brain area—or for boys with cloacal exstophy to be raised as girls. It's not like we could deliberately invent such horrors to inflict on human subjects, just to find out what would happen."
+"Um. Illustrative case studies are hard to come by. It takes some incredibly rare coincidences for an accident to take out exactly enough of the brain to leave the patient alive but with deficits demonstrating the functionality of the frontal lobe, or for a boy _with an identical twin brother_ to be raised as girl after a botched circumcision—"
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+"More like circum-_trans_-ion if you ask me!"
+
+"_I didn't_. Anyway, it's not like we could deliberately invent such horrors to inflict on human subjects, just to find out what would happen."