Does everything start in the mind? The world’s best gymnast came back from a two-year break to claim a slew of new records. Some think it shows the power of the human brain.
Simone Biles beats ‘twisties’ to make history
Champion: Simone Biles broke a 90-year record with her performance in Chicago this week. Glossary
Simone Biles - An American artistic gymnast born in 1997.
Air awareness - An athlete's understanding of the body and its position in the air.
Vindicated - Proved right or cleared of blame.
Stoics - Stoicism is a philosophy that originated in the ancient world and still has many adherents today. Stoics seek to control their emotions and preserve their happiness in the face of adversity.
Epictetus - A Greek Stoic philosopher. He was born into slavery.
Immanuel Kant - A German Enlightenment philosopher who is regarded as one of the most important thinkers of the modern era. He fundamentally changed the way we think about a variety of subjects, from aesthetics to cognition to morality.