Preserving truth in an era of misinformation is challenging. Bill traces the life cycle and impact of conspiracy theories, with insights from Lady Gaga.

Can scaling innovations help us achieve zero emissions? Bill charts the path to a net-zero future and shares hopeful developments with climate activists.

The income gap is a growing concern with far-reaching implications. Bill explores ways to address inequality with Sens. Bernie Sanders and Mitt Romney.

Can technology help eradicate infectious diseases? Bill meets with Dr. Anthony Fauci and other public health experts to examine the latest breakthroughs.