2018年7月21日 星期六

Where are all the aliens?

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This week on TED.com
July 21, 2018

Stephen Webb: Where are all the aliens?

13:18 minutes · Filmed Apr 2018 · Posted Jul 2018 · TED2018

The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the remarkable barriers a planet would need to clear in order to host an extraterrestrial civilization -- and makes a case for the beauty of our potential cosmic loneliness. "The silence of the universe is shouting, 'We're the creatures who got lucky,'" Webb says.

Collection of the week

How to connect with others

Sometimes, relating to other people doesn't come naturally. These talks offer new insights into how to connect ... and celebrate the ways we are more alike than you think. Watch »

7 TED Talks to choose from • Total run time 1:33:19

Catch up on this week's new TED Talks

What if you could search the surface of the Earth the same way you search the internet? Will Marshall and his team at Planet use the world's largest fleet of satellites to image the entire Earth every day. Now they're moving on to a new project: using AI to index all the visible objects on the planet over time -- which could make ships, trees, houses and everything on Earth searchable. Watch »

Once your smart devices can talk to you, who else are they talking to? Kashmir Hill and Surya Mattu wanted to find out -- so they outfitted Hill's apartment with 18 different internet-connected devices and built a special router to track how often they contacted their servers and see what they were reporting back. The results were surprising -- and more than a little bit creepy. (This talk contains mature language.) Watch »

History is written by the victors, as the saying goes -- but what would it look like if it was written by social media? Journalist and TED Fellow Mikhail Zygar is on a mission to show us with Project1917, a "social network for dead people" that posts the real diaries and letters of more than 3,000 people who lived during the Russian Revolution, showing the daily thoughts of key figures like Lenin and Trotsky -- and ordinary people in that extraordinary time. Watch »

Have you ever had a really bad customer-service interaction with a front-line staffer at a store, a doctor's office, a bank? It might be because the staffer wasn't adequately trained to help you -- or worse, was "trained" by a computer program to ask intrusive questions and give you canned responses. In this witty, provocative talk, Tamekia MizLadi Smith shares a unique, human-focused workplace training program that will inspire front-line workers (and their bosses) to communicate with compassion and respect. Watch »

Read more on ideas.ted.com

Tech: Here's how companies and governments want to use our data »
Data isn't "the new oil," says James Bridle ... it's the new nuclear power.

Environment: Our favorite ocean experts on the plastic stuff they wish you'd all stop using »
Say no to plastic bags, reduce microfibers and microbeads, and more ways to de-plastify your life

Design: Inside a Bangkok park that's built to flood »
In this frequently flooded city, an amazing park makes green space -- and stores a million gallons of water, using some very clever design tricks

Quote of the Week

Teaching people transitional change, instead of shocking them into change, is always a better way of implementing change."

Tamekia MizLadi Smith
How to train employees to have difficult conversations

ted radio hour: the five senses

The five senses shape all our experience of the world around us, but we still don't fully understand them. This episode, TED speakers explore how our brains make sense of sensation, and how our minds manufacture "reality."
Listen on Apple Podcasts, on the TED Android app, NPR One or wherever you get your podcasts.

 

 

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