heteronormativity include sexual behavior, but mostly contains other behavior. Like the way you dress, talk or present yourself, the activities or kind of play you do or like.
Parent comment is mostly talking about non-sexual heteronormativity, which is often presented as the norm. An obvious example would be an adult insisting that pink is for girl and blue for boys, and shaming a kid for liking what's not the (hetero-)norm.
If I recall correctly, similar experiment have been tried lately, where the subject survive. (maybe because they were shorter than the navy's one)
However, the subjects stated afterward that they felt adequately oxygenated, but also were on the verge of panic due to the constant feeling of drowning induce by having your lungs filled with liquid.
None of them felt like they would be able to do any kind of productive task in this state.
Whenever I have a tiny bit of water “go down the wrong pipe” I think about how truly awful it must feel to drown. Just inhaling a teeny tiny amount of water is so uncomfortable and sometimes even scary even though you can still breath and you know everything will be perfectly fine. I can’t even imagine how awful that sensation must have been for the people involved in this experiment.
Peter Watts' Rifters series is premised on the development of this sort of technology for human use and goes into uncomfortable detail about the (false) feeling of drowning
Help her question and understand the underlying reason(s) why she wants to go into medicine. (status, money, wanting to help other, being intellectually challenge, curiosity for anatomy/biology, ...)
Find other fields where those wants can be better met by a deafblind person.
Help her reframe her initial idea into one of these field.
If an AGI start putting utility value on human life, wouldn't it try to influence human reproduction and select for what it value. ie. Explicit eugenism.
Yes, all humans will not be put to waste, but what tells you they will be well-treated, or value what you currently value.