What would you do if you could live to 400 years old?

A Reddit user pondered how they would spend 400 years of life, assuming technology could maintain their health. They envisioned diverse experiences, including 20 years in finance in New York, 20 years as an art dealer in London, a decade traveling through Africa, and five years in Japan. The user expressed a desire to return to London to revisit a tree they planted, reflecting on the passage of time and shared experiences with a loved one.