Sure, you can watch TEDYouth in your pajamas, but wouldn’t it be cooler to watch with friends?

We won’t judge you if you wear sweatpants.

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TEDYouth is an amazing one-day conference for young people where some of the world’s most fascinating scientists, designers, technologists, explorers, artists, performers (and more!) share short lessons on what they do best. It’s the school seminar / life advice session / super-smart party we always wished we would have had as kids, and it’s this Saturday!

Only at TEDYouth would NASA Mohawk guy, an International Grandmaster of Chess, Jay-Z’s producer, and the creator of Google Glass hang out trading stories and answering questions — which is just what happened last year.

This year, TEDYouth is livestreaming free! In English, Arabic, and Spanish! Speakers include an elephant expert, the head of research at Pixar, a professional storm chaser, a 16-year-old DJ, and our favorite guerrilla gardener Ron Finley.

TEDYouth 2013 is gonna be great. And we hope you’ll watch it live with us. Because watching a TED Conference live is pretty amazing.

Here’s how you do it:

1. Register to host an official TEDxYouthDay viewing party event, and join lots of other TEDxYouth events around the globe.

or

2. Put on your PJs, heat up some pizza pockets, and get ready to have your mind blown by new ideas. TEDYouth will be webcast on November 16, 2013, from 11am to 6pm CDT (noon to 7pm EST).

24,000 TEDx Talks from around the world visualized in a gorgeous new infographic

If we could map the ideas spread at TEDx events worldwide — in Bolivia and Brazil, Australia and Antarctica, Poland and Peru — what would it look like? In today’s talk over at TED.com, ecologist Eric Berlow and physicist Sean Gourley let us know.

The big data-obsessed pair took the entire archive of TEDx Talks — over 20,000 ideas worth spreading — and built algorithms to transform them into an visual ecosystem of global ideas.

Check out some of their visualizations above, which transform TEDx Talks into tiny, colorful dots — forming constellations of the ideas, issues, and concepts that come together to create conversation and transform communities. Below, their talk:

Visualizing the TEDx idea network

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Photo: Kris Krug

Data and analytics company Quid is at the TEDx Action Lab space at TED and TEDActive this year, exploring the TEDx ecosystem through data pulled from 25% of the over 25,000 TEDx Talks, showing how ideas around the globe are connected.

Some interesting facts that emerged:

  • Women aged 24-35 love entrepreneurial talks
  • Men 30+ watch more health talks, young men watch more gaming and social internet talks
  • Cameron Russel’s TEDxMidAtlantic talk is popular with young teen girls 
  • Women watch talks with higher “betweeness centrality” (talks that are more multi-disciplinary), men watch talks with less
Learn more about the Quid and TEDx collaboration (and see the video being shown at TED and TEDActive) in this Mashable article.