Why joy is a state of mind | Angélique Kidjo and Femi Oke

Are insect brains the secret to great AI? | Frances S. Chance

How millennials and Gen Z can invest in a better future | Miguel Goncalves

The board game getting kids excited about school | Joel Baraka

The internet's accessibility problem -- and how to fix it | Clive Loseby

Africa's path to clean mobility -- driven by motorcycles | Adetayo Bamiduro

How play helps a kid's brain grow | Jesse Ilhardt

Stories of the year | After Hours

How to be a futurist | The TED Interview

The emotions behind your money habits | TED Business