Imagine there is no heaven above us, no hell below us, and only one world we share together. If it were truly possible to live forever without aging, would you still want to grow old gracefully? If I could change the entire world with a single decision, I would start by teaching everyone to show more kindness to strangers. If people around the world were more understanding and empathetic, there would be less conflict, fewer wars, and more compassion. What would you personally do if you suddenly had unlimited power and resources?