Mo Gawdat is the former Chief Business Officer for Google X and the author of the international bestselling book “Solve For Happy: Engineer Your Path to Joy.”

For years, he studied happiness as if it was a mathematical problem to be solved, and believed he had cracked the secret of being content.

But when his 21 year old son, Ali, died suddenly during a routine operation, nothing made sense anymore.

How could he even be alive, let alone happy, in a world where such a terrible thing could happen?

Mo speaks about how he made peace with his son’s death and made his life worth living again.