Tech visionary and global health and climate philanthropist Bill Gates embarks on a learning journey that explores pressing issues facing our world today. He delves into the promise and risks of artificial intelligence; the pervasive challenge of misinformation and the underlying complexity of defining truth in an era of social media; the scale of the climate crisis and the potential of cutting-edge technologies to solve it; the injustice of income inequality and the opportunities to tackle poverty; and how science and innovation is leading to cures for deadly diseases.