TED Circles: Truth tellers

Upholding the truth (or not) has lasting implications. In this playlist, you'll hear a variety of ideas about finding and telling the truth. If you'd like to discuss this theme in small groups, visit

  1. 12:21
    J. Marshall Shepherd 3 kinds of bias that shape your worldview

    What shapes our perceptions (and misperceptions) about science? In an eye-opening talk, meteorologist J. Marshall Shepherd explains how confirmation bias, the Dunning-Kruger effect and cognitive dissonance impact what we think we know — and shares ideas for how we can replace them with something much more powerful: knowledge.

  2. 17:47
    Alex Edmans What to trust in a "post-truth" world

    Only if you are truly open to the possibility of being wrong can you ever learn, says researcher Alex Edmans. In an insightful talk, he explores how confirmation bias — the tendency to only accept information that supports your personal beliefs — can lead you astray on social media, in politics and beyond, and offers three practical tools for finding evidence you can actually trust. (Hint: appoint someone to be the devil's advocate in your life.)

  3. 15:30
    Deborah Lipstadt Behind the lies of Holocaust denial

    "There are facts, there are opinions, and there are lies," says historian Deborah Lipstadt, telling the remarkable story of her research into Holocaust deniers — and their deliberate distortion of history. Lipstadt encourages us all to go on the offensive against those who assault the truth and facts. "Truth is not relative," she says.

  4. 11:06
    Julia Shaw How to support witnesses of harassment and build healthier workplaces

    What makes you speak up — or not — when you see something you know is wrong? Memory scientist Julia Shaw explains the psychology of those who witness workplace discrimination and harassment — and shares actionable steps companies can take to support and amplify their voices.