# Should you trust unanimous decisions?

- Institution: TED
- Department: TED-Ed
- Speaker: Derek Abbott
- Year: 2016
- Level: For everyone
- Language: English
- Subjects: Psychology and the brain, Society and politics, History
- Source: [TED](https://www.ted.com/talks/derek_abbott_should_you_trust_unanimous_decisions)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Imagine a police lineup where ten witnesses are asked to identify a bank robber they glimpsed fleeing the scene. If six of them pick the same person, there's a good chance that's the culprit. And if all ten do, you might think the case is rock solid. But sometimes, the closer you start to get to total agreement, the less reliable the result becomes. Derek Abbott explains the paradox of unanimity. \[Directed by Brett Underhill, narrated by Addison Anderson\].

## Lectures

1. [Should you trust unanimous decisions?](https://invisiblenetwork.ai/learn/ted/derek_abbott_should_you_trust_unanimous_decisions/aa1233191dc8), 4 min (TED's player)