Earlier quoted context omitted.
You're just being overly pedantic. They hold their breath, fully submerge, control their buoyancy, and propel themselves through water. Also known as swimming.
Nah, this is often not considered swimming in major publications and by zoos. National Geographic https://www.nationalgeographic.com/animals/mammals/facts/hip... > Hippos cannot swim or breathe underwater, and unlike most mammals they are so dense that they cannot float. Instead, they walk or run along the bottom of the riverbed. Because their eyes and nostrils are located on the top of their heads, they can still se…
It's funny to see people complaining about this when this kind of analysis is very important to improving these systems. I want to remind people not to romanticize these systems or get attached to our expectations of what we think it should be doing. They are a novel computer system and we should be happy to objectively analyze their performance.