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A handful of highlights, from over 15,000 topics discussed:

Questions Avatar What's the overlooked gem, the book I haven't read that I must?
Started by Seth Godin, Hastings On Hudson, NY
381 Comments
Ideas Avatar We spend 3 billion hours a week as a planet playing videogames. Is it worth it?
Started by Jane McGonigal, San Francisco, CA
202 Comments
Questions Avatar Why do so many think that population growth is an important issue for the environment?
Started by Hans Rosling, Stockholm, Sweden
97 Comments
Debates Avatar Is consciousness merely a by-product of the physical brain?
Started by daniel heir, Hamar, Norway
561 Comments
Ideas Avatar Preserving what we love about books in a digital world
Started by Mike Matas, San Francisco, CA
156 Comments
Questions Avatar What do you do to make your life awesome?
Started by Neil Pasricha, Toronto, Canada
445 Comments
Debates Avatar Israel/Palestine conflict, call to pre-1967 boarders
Started by Laura Bickle, Bozeman, Montana
600 Comments
Questions Avatar When have you realized that you were wrong about what you once thought was right?
Started by Damon Horowitz, New York, NY
96 Comments
Questions Avatar Can a ball save a life & change the world? What are the social innovation values of sports?
Started by Kevin Carroll, Portland, OR
55 Comments
Questions Avatar What are some of the lessons from war we can apply to other human endeavors?
Started by Sean Gourley, San Francisco, CA
114 Comments
Ideas Avatar Extraordinary Women
Started by Helena Ripoll Hazell, London, UK
260 Comments
Ideas Avatar What's your short story in 6 words? Go!
Started by Maureen Dilger, Mission, KS
744 Comments
Debates Avatar Isn't it time to eliminate grades in education?
Started by Mark Barnes, Cleveland, OH
594 Comments
Questions Avatar WHY is the patient the most under-used resource in healthcare?? How did that happen?
Started by Dave deBronkart, Nashua, NH
304 Comments
Ideas Avatar What should happen to your digital identity after you die?
Started by Adam Ostrow, New York, NY
84 Comments
Questions Avatar What place does creativity have in education?
Started by Karina Eisner, Spring, TX
493 Comments
Debates Avatar Is the internet, not formal education, the new great equalizer?
Started by Megan Summers, Golden Lake, CA
194 Comments
Questions Avatar What are the defining qualities of today's youth?
Started by Cloe Shasha, New York, NY
446 Comments
Ideas Avatar We can learn by exchanging and discussing our own lists of "10 Things I Know to be True."
Started by Cleo Abram, New York, NY
777 Comments
Questions Avatar What's one thing you wish you had learned in school?
Started by Jordan Reeves, New York, NY
745 Comments
Questions Avatar What alternatives are there to the current economic system?
Started by Jah Sun, Los Angeles, CA
373 Comments
Questions Avatar In your opinion, what should the purpose of education be?
Started by Adam Burk, Portland, ME
338 Comments
Ideas Avatar If you could make a wish on behalf of The City 2.0, what would it be?
Started by Amy Novogratz, Brooklyn, NY
374 Comments
Questions Avatar How do we get corporations out of government?
Started by James Kindler, Pittsburgh, PA
428 Comments
Questions Avatar What is your favorite quote and why?
Started by Wayne Busby, Montreal, Canada
762 Comments
Ideas Avatar Live Q&A with T. Boone Pickens: Let's transform energy -- with natural gas.
Started by Boone Pickens, Dallas, TX
139 Comments
Questions Avatar What type of feedback do you seek in your work and from whom do you seek it?
Started by Fritzie -, Vienna, Austria
100 Comments
Questions Avatar How has digital technology changed your communication with friends, family & co-workers?
Started by Sherry Turkle, Boston, MA
109 Comments
Questions Avatar What happens after we die?
Started by Devon Gisbert, Patchogue, NY
292 Comments
Ideas Avatar Fill in the Blank - What the World needs now is __________ ?
Started by Sartaj Anand, Bangalore, India
446 Comments
Questions Avatar Strange questions that humans have not yet found an answer for!
Started by Arthanari Chandrasekaran, Chennai, Tamil Nadu, India
371 Comments
Questions Avatar What would you attempt to do if you knew you could not fail?
Started by Dave Lim, Singapore
237 Comments
Ideas Avatar Aren't Christianity, Judaism and Islam basically the same?
Started by Amr Salah, Alexandria, Egypt
322 Comments
Debates Avatar Has the time come for the U.S Second Amendment to be repealed or amended?
Started by Morgan Barnes, Sydney, Australia
1362 Comments
Questions Avatar Is there any way to prevent religious debates from turning into a big fight?
Started by Farokh Shahabi Nezhad, Tehran, Iran
297 Comments
Questions Avatar Why Can't We Solve Big Problems?
Started by Jason Pontin, Cambridge, MA
301 Comments
Questions Avatar What are the challenges that gifted and creative individuals face at present?
Started by Sherrlene Uy, Quezon City, Philippines
350 Comments
Debates Avatar Rupert Sheldrake's TEDx talk: Detailing the issues
Started by Emily McManus, New York, NY
523 Comments
Debates Avatar The debate about Graham Hancock's talk
Started by TED Admin
1649 Comments
Questions Avatar Can we ever design an experiment which can determine whether God exists?
Started by Bernard White, London, UK
750 Comments
Debates Avatar Is America past its prime? Discuss with Robert Gordon and Erik Brynjolfsson
Started by TED Debates
115 Comments
Ideas Avatar Integrating music into our everyday lives.
Started by Lizanne Hennessey, Terneuzen, Netherlands
293 Comments
Questions Avatar What are some realistic and creative ways to reduce wealth inequality?
Started by Laree Payne, Hamilton, New Zealand
290 Comments
Ideas Avatar Evolution: "just a theory”? Scientific caution is sometimes confusing.
Started by Gerald O'brian, Andorra City, Andorra
425 Comments
Debates Avatar I need help with a dilemma: What does it mean to be American? And why does it work?
Started by Don Anderson, Saint Louis, MO
273 Comments
Questions Avatar Are you happier while at the computer, or while taking a walk?
Started by Kumāra Bhikkhu, Taiping, Malaysia
143 Comments
Ideas Avatar How can we improve plastic recycling?
Started by Julie Nawfal
127 Comments
Ideas Avatar I would like to charter a bank where 99% of the profit goes back into the local community.
Started by Jt Parmar, United States
28 Comments
Questions Avatar What will it take for everyone to become a teacher?
Started by Amy Peach, Saint Louis, MO
101 Comments
Questions Avatar Is there anything truly original?
Started by Pabitra Mukhopadhyay, Kolkata, West Bengal, India
210 Comments
Questions Avatar Why should there be wealth distribution or redistribution?
Started by Mike Colera, Cibolo, TX
141 Comments
Debates Avatar Is the food we eat killing us?
Started by Veronica Sun, Nan Jing, China
80 Comments
Ideas Avatar The Myth of the Box
Started by Aser Ibrahim, Cairo, Egypt
19 Comments
Questions Avatar Regarding human effort and endeavor, which is better: Homogenization or Individualism?
Started by R H, Chicago, IL
19 Comments
Debates Avatar Why is there something rather than nothing?
Started by Harald Jezek, Merida, Yucatan Mexico
104 Comments