Obviously this won’t work for all sports, but things like football, track, soccer, it would allow for de-gendered team, even allowing athletes with the skills but not the genetically-endowed physical attributes to have a place to play.
Note: I know very little about sports and being on a sports team, so please point out anything that doesn’t make sense.
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Except that isn’t true. Men are more stable due to hip width, their hearts move more blood, their arms and hands are larger/longer, and their lungs hold more air. None of that goes away.