2:06 What is the difference between runners today, like Usain Bolt, and runners before, like Jesse Owens?
4:28 What technological innovations have changed sports like swimming and cycling?
6:25 What role do genetics have in athletics?
9:29 What has happened to large, small, and weird athletes over time?
10:30 What do Phelps and El Gerrouj have in common?
10:50 Who do Kenyans admire?
12:02 What is the last thing that has changed sports?
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