The next morning, the men discuss the test they're about to perform. It's called the "Hand-Stand Challenge," and the goal is to see who can do the longest hand stand. The men are also trying to guess which one of them is the "best astronaut," or the one with the best "sense of balance" and "endurance." This is the first time they've heard of this test, and the men are anxious about how they'll pick the man with the "higher sense of balance." They've done their own research on the men, and one of the men is the last person they'd expected to perform this task. He used to work in the monkey research lab at the University of Tokyo, where he learned how to use his fists to learn how to do hand stands. The other man is a sports medicine professor at the university, but he spends his days on the toilet.