It's all absolutely awesome and inspiring to the point of unbelievability. Hell, I doubt that a single person on Earth would raise an eyebrow if Phelps one day chose to take off his human mask and reveal that he was actually a were-seal all along.
Which, incidentally, he kind of is.
The "wingspan" statistic also indicates the possibility of a were-penguin.
According to many sources, nature has designed Michael Phelps to be a better Aquaman than Aquaman himself, to the point where you start to suspect he could easily sic a sharknado on his worst competition, if he ever actually had any. His massive hands and feet are custom-designed to act as paddles. His ridiculous arm length gives him a massive stroking advantage (hee hee hee), while his tiny, possibly double-jointed legs are basically designed to propel him through water. In fact, his entire body is built out of landlubber proportion, with his 6'4 frame divided in the way that gives him the upper body of a 6'7 dude and the legs of someone under 6' tall. Here's how goofy this makes him look out of water:
Note to the next gritty, realistic Aquaman reboot: Model the dude after an emperor penguin instead of Khal Drogo.