Rising inequality and growing political instability are the direct result of decades of bad economic theory, says entrepreneur Nick Hanauer. In a visionary talk, he dismantles the mantra that "greed is good" -- an idea he describes as not only morally corrosive, but also scientifically wrong -- and lays out a new theory of economics powered by reciprocity and cooperation.

Carl June is the pioneer behind CAR T-cell therapy: a groundbreaking cancer treatment that supercharges part of a patient's own immune system to attack and kill tumors. In a talk about a breakthrough, he shares how three decades of research culminated in a therapy that's eradicated cases of leukemia once thought to be incurable -- and explains how it could be used to fight other types of cancer.

It begins with a countdown. A woman goes into labor as the clock ticks towards midnight. Across India, people wait for the declaration of independence after nearly 200 years of British rule. At the stroke of midnight, an infant and two new nations are born in perfect synchronicity. These events form the foundation of "Midnight's Children." Iseult Gillespie explores Salman Rushdie's dazzling novel. [Directed by Tomás Pichardo-Espaillat, narrated by Adrian Dannatt, music by Cem Misirlioglu / Joel Kreimeyer-Kelly].

"A record of our emotional life is written on our hearts," says cardiologist and author Sandeep Jauhar. In a stunning talk, he explores the mysterious ways our emotions impact the health of our hearts -- causing them to change shape in response to grief or fear, to literally break in response to emotional heartbreak -- and calls for a shift in how we care for our most vital organ.

The use of deepfake technology to manipulate video and audio for malicious purposes -- whether it's to stoke violence or defame politicians and journalists -- is becoming a real threat. As these tools become more accessible and their products more realistic, how will they shape what we believe about the world? In a portentous talk, law professor Danielle Citron reveals how deepfakes magnify our distrust -- and suggests approaches to safeguarding the truth.

Reading slowly -- with her finger running beneath the words, even when she was taught not to -- has led Jacqueline Woodson to a life of writing books to be savored. In a lyrical talk, she invites us to slow down and appreciate stories that take us places we never thought we'd go and introduce us to people we never thought we'd meet. "Isn't that what this is all about -- finding a way, at the end of the day, to not feel alone in this world, and a way to feel like we've changed it before we leave?" she asks.

In 2018, Scotland, Iceland and New Zealand established the network of Wellbeing Economy Governments to challenge the acceptance of GDP as the ultimate measure of a country's success. In this visionary talk, First Minister of Scotland Nicola Sturgeon explains the far-reaching implications of a "well-being economy" -- which places factors like equal pay, childcare, mental health and access to green space at its heart -- and shows how this new focus could help build resolve to confront global challenges.

Less than 13 percent of police officers in the United States are women -- despite their proven effectiveness in diffusing violent situations and reducing the use of force. Drawing on more than two decades of experience as a police officer and chief, TED Fellow Ivonne Roman shares how a simple change to police academy physical fitness tests could help build a more balanced force that benefits communities and officers alike.

First Minister of Scotland Nicola Sturgeon joined TEDSummit in Edinburgh to deliver a visionary talk about making collective well-being the main aim of public policy and the economy. Watch the full talk at go.ted.com/nicolasturgeon. It was a charged week in UK politics; that same morning, Boris Johnson assumed office as Prime Minister of the United Kingdom. After the talk, Head of TED Chris Anderson joined First Minister Sturgeon to ask a few questions about the political situation in the UK.

China's one-child policy ended in 2015, but we're just beginning to understand what it was like to live under the program, says TED Fellow and documentary filmmaker Nanfu Wang. With footage from her film "One Child Nation," she shares untold stories that reveal the policy's complex consequences and expose the creeping power of propaganda.