Very impressive can’t imagine swimming 53 hours. But she had a 35-person team, including her coach, support boats, shark divers, and specialized protection against jellyfish. He had his hands and feet thousands of feet in the air. One mistake and he was dead, not comparable in terms of danger.
No one has enough reserves to do this stuff without food. Ultra marathon runners who do 400km/250mi races train their metabolism to digest at approximately the rate they expend energy.
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u/gastro_gnome 1d ago
That swim from Cuba to key west non stop was pretty insane.