Edited January 2026. Originally written 26 June 2017. Over the last week I had the opportunity to hear many great thought leaders speak on the topic of happiness at the Happiness and Its Causes Conference 2017. Some of my takeaways are below. As are some of my challenges to anyone reading this. 1. We need a critical mass of people (probably those who have achieved personal change) if we want to change the world. The challenge – what are you doing to make the world a slightl