How can groups make good decisions? | Mariano Sigman and Dan Ariely
TED Talks Daily6 Dec 2017

How can groups make good decisions? | Mariano Sigman and Dan Ariely

We all know that when we make decisions in groups, they don't always go right -- and sometimes they go very wrong. How can groups make good decisions? With his colleague Dan Ariely, neuroscientist Mariano Sigman has been inquiring into how we interact to reach decisions by performing experiments with live crowds around the world. In this fun, fact-filled explainer, he shares some intriguing results -- as well as some implications for how it might impact our political system. In a time when people seem to be more polarized than ever, Sigman says, better understanding how groups interact and reach conclusions might spark interesting new ways to construct a healthier democracy.


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"The Sacred Art of the Ori" | Laolu Senbanjo

"The Sacred Art of the Ori" | Laolu Senbanjo

Every artist has a name, and every artist has a story. Laolu Senbanjo's story started in Nigeria, where he was surrounded by the culture and mythology of the Yoruba, and brought him to law school, to New York and eventually to work on Beyoncé's "Lemonade." He shares what he calls "The Sacred Art of the Ori," art that uses skin as canvas and connects artist and muse through mind, body and soul. Hosted on Acast. See acast.com/privacy for more information.

25 Aug 20178min

What the sugar coating on your cells is trying to tell you | Carolyn Bertozzi

What the sugar coating on your cells is trying to tell you | Carolyn Bertozzi

Your cells are coated with sugars that store information and speak a secret language. What are they trying to tell us? Your blood type, for one -- and, potentially, that you have cancer. Chemical biologist Carolyn Bertozzi researches how sugars on cancerous cells interact with (and sometimes trick) your immune system. Learn more about how your body detects cancer and how the latest cancer-fighting medicines could help your immune system beat the disease. Hosted on Acast. See acast.com/privacy for more information.

24 Aug 201711min

What would happen if we upload our brains to computers | Robin Hanson

What would happen if we upload our brains to computers | Robin Hanson

Meet the "ems" -- machines that emulate human brains and can think, feel and work just like the brains they're copied from. Economist and social scientist Robin Hanson describes a possible future when ems take over the global economy, running on superfast computers and copying themselves to multitask, leaving humans with only one choice: to retire, forever. Glimpse a strange future as Hanson describes what could happen if robots ruled the earth. Hosted on Acast. See acast.com/privacy for more information.

24 Aug 201712min

A lyrical bridge between past, present and future | David Whyte

A lyrical bridge between past, present and future | David Whyte

With his signature charm and searching insight, David Whyte meditates on the frontiers of the past, present and future, sharing two poems inspired by his niece's hike along El Camino de Santiago de Compostela in Spain. Hosted on Acast. See acast.com/privacy for more information.

23 Aug 201720min

What moral decisions should driverless cars make? | Iyad Rahwan

What moral decisions should driverless cars make? | Iyad Rahwan

Should a driverless car kill you if it means saving five pedestrians? In this primer on the social dilemmas of driverless cars, Iyad Rahwan explores how the technology will challenge our morality and explains his work collecting data from real people on the ethical trade-offs we're willing (and not willing) to make. Hosted on Acast. See acast.com/privacy for more information.

22 Aug 201713min

The era of blind faith in big data must end | Cathy O'Neil

The era of blind faith in big data must end | Cathy O'Neil

Algorithms decide who gets a loan, who gets a job interview, who gets insurance and much more -- but they don't automatically make things fair, and they're often far from scientific. Mathematician and data scientist Cathy O'Neil coined a term for algorithms that are secret, important and harmful: "weapons of math destruction." Learn more about the hidden agendas behind these supposedly objective formulas and why we need to start building better ones. Hosted on Acast. See acast.com/privacy for more information.

22 Aug 201713min

How I found myself through music | Anika Paulson

How I found myself through music | Anika Paulson

"Music is everywhere, and it is in everything," says musician, student and TED-Ed Clubs star Anika Paulson. Guitar in hand, she plays through the beats of her life in an exploration of how music connects us and makes us what we are. Hosted on Acast. See acast.com/privacy for more information.

21 Aug 20179min

The secret to living longer may be your social life | Susan Pinker

The secret to living longer may be your social life | Susan Pinker

The Italian island of Sardinia has more than six times as many centenarians as the mainland and ten times as many as North America. Why? According to longevity researcher Susan Pinker, it's not a sunny disposition or a low-fat, gluten-free diet that keeps the islanders alive so long -- it's their emphasis on close personal relationships and face-to-face interactions. Learn more about super longevity as Pinker explains what it takes to live to 100 and beyond. Hosted on Acast. See acast.com/privacy for more information.

18 Aug 201716min

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