Epstein shares a demonstration comparing 1936 sprinter Jesse Owens with present-day sprinter, Usain Bolt. What role does biomechanics play in this, and how does it relate to what we learned in the unit? Epstein says that technology has made a difference in all sports over the years. How has it done this? What are some examples of these technologies? Explain what Epstein meant when he said that the gene pool in competitive sports has changed and is pushing athletes forward? Discuss how an athlete’s mindset impacts their performance in professional sports. Please provide examples and discuss what traits humans have that allow us to participate in ultra-endurance sports. Out of the three factors Epstein gives for improved performance among professional athletes, which do you think has had the most overall impact on sports? Please briefly explain why.