The BEST episodes of TED Talks season 2017

#1 - Helen Pearson: Lessons from the longest study on human development

Season 2017 - Episode 205 - Aired 10/2/2017

For the past 70 years, scientists in Britain have been studying thousands of children through their lives to find out why some end up happy and healthy while others struggle. It's the longest-running study of human development in the world, and it's produced some of the best-studied people on the planet while changing the way we live, learn and parent. Reviewing this remarkable research, science journalist Helen Pearson shares some important findings and simple truths about life and good parenting.

#2 - Julio Gil: Future tech will give you the benefits of city life anywhere

Season 2017 - Episode 201 - Aired 9/27/2017

Don't believe predictions that say the future is trending towards city living. Urbanization is actually reaching the end of its cycle, says logistics expert Julio Gil, and soon more people will be choosing to live (and work) in the countryside, thanks to rapid advances in augmented reality, autonomous delivery, off-the-grid energy and other technologies. Think outside city walls and consider the advantages of country living with this forward-thinking talk.

#3 - Euna Lee: What I learned as a prisoner in North Korea

Season 2017 - Episode 204 - Aired 9/29/2017

In March 2009, North Korean soldiers captured journalist Euna Lee and her colleague Laura Ling while they were shooting a documentary on the border with China. The courts sentenced them to 12 years of hard labor, but American diplomats eventually negotiated their release. In this surprising, deeply human talk, Lee shares her experience living as the enemy in a detention center for 140 days -- and the tiny gestures of humanity from her guards that sustained her.

#4 - Radhika Nagpal: What intelligent machines can learn from a school of fish

Season 2017 - Episode 195 - Aired 9/21/2017

Science fiction visions of the future show us AI built to replicate our way of thinking -- but what if we modeled it instead on the other kinds of intelligence found in nature? Robotics engineer Radhika Nagpal studies the collective intelligence displayed by insects and fish schools, seeking to understand their rules of engagement. In a visionary talk, she presents her work creating artificial collective power and previews a future where swarms of robots work together to build flood barriers, pollinate crops, monitor coral reefs and form constellations of satellites.

#5 - Erin Marie Saltman: How young people join violent extremist groups -- and how to stop them

Season 2017 - Episode 179 - Aired 9/5/2017

#6 - Armando Azua-Bustos: The most Martian place on Earth

Season 2017 - Episode 194 - Aired 9/20/2017

How can you study Mars without a spaceship? Head to the most Martian place on Earth -- the Atacama Desert in Chile. Astrobiologist Armando Azua-Bustos grew up in this vast, arid landscape and now studies the rare life forms that have adapted to survive there, some in areas with no reported rainfall for the past 400 years. Explore the possibility of finding life elsewhere in the universe without leaving the planet with this quick, funny talk.

#7 - Duarte Geraldino: What we're missing in the debate about immigration

Season 2017 - Episode 193 - Aired 9/19/2017

Between 2008 and 2016, the United States deported more than three million people. What happens to those left behind? Journalist Duarte Geraldino picks up the story of deportation where the state leaves off. Learn more about the wider impact of forced removal as Geraldino explains how the sudden absence of a mother, a local business owner or a high school student ripples outward and wreaks havoc on the relationships that hold our communities together.

#8 - Olúfẹ́mi Táíwò: Why Africa must become a center of knowledge again

Season 2017 - Episode 192 - Aired 9/19/2017

How can Africa, the home to some of the largest bodies of water in the world, be said to have a water crisis? It doesn't, says Olúfẹ́mi Táíwò -- it has a knowledge crisis. Táíwò suggests that lack of knowledge on important topics like water and food is what stands between Africa's current state and a future of prosperity. In a powerful talk, he calls for Africa to make the production of knowledge within the continent rewarding and reclaim its position as a locus of learning on behalf of humanity.

#9 - Jun Wang: How digital DNA could help you make better health choices

Season 2017 - Episode 191 - Aired 9/18/2017

What if you could know exactly how food or medication would impact your health -- before you put it in your body? Genomics researcher Jun Wang is working to develop digital doppelgangers for real people; they start with genetic code, but they'll also factor in other kinds of data as well, from food intake to sleep to data collected by a "smart toilet." With all of this valuable information, Wang hopes to create an engine that will change the way we think about health, both on an individual level and as a collective.

#10 - Sethembile Msezane: Living sculptures that stand for history's truths

Season 2017 - Episode 190 - Aired 9/15/2017

In the century-old statues that occupy Cape Town, Sethembile Mzesane didn't see anything that looked like her own reality. So she became a living sculpture herself, standing for hours on end in public spaces dressed in symbolic costumes, to reclaim the city and its public spaces for her community. In this powerful, tour-de-force talk, she shares the stories and motivation behind her mesmerizing performance art.

#11 - Helen Czerski: The fascinating physics of everyday life

Season 2017 - Episode 189 - Aired 9/14/2017

Physics doesn't just happen in a fancy lab -- it happens when you push a piece of buttered toast off the table or drop a couple of raisins in a fizzy drink or watch a coffee spill dry. Become a more interesting dinner guest as physicist Helen Czerski presents various concepts in physics you can become familiar with using everyday things found in your kitchen.

#12 - Augie Picado: The real reason manufacturing jobs are disappearing

Season 2017 - Episode 188 - Aired 9/14/2017

We've heard a lot of rhetoric lately suggesting that countries like the US are losing valuable manufacturing jobs to lower-cost markets like China, Mexico and Vietnam -- and that protectionism is the best way forward. But those jobs haven't disappeared for the reasons you may think, says border and logistics specialist Augie Picado. He gives us a reality check about what global trade really looks like and how shared production and open borders help us make higher quality products at lower costs.

#13 - Pierre Thiam: A forgotten ancient grain that could help Africa prosper

Season 2017 - Episode 187 - Aired 9/13/2017

Forget quinoa. Meet fonio, an ancient "miracle grain" native to Senegal that's versatile, nutritious and gluten-free. In this passionate talk, chef Pierre Thiam shares his obsession with the hardy crop and explains why he believes that its industrial-scale cultivation could transform societies in Africa.

#14 - Alexander Wagner: What really motivates people to be honest in business

Season 2017 - Episode 186 - Aired 9/12/2017

Each year, one in seven large corporations commits fraud. Why? To find out, Alexander Wagner takes us inside the economics, ethics and psychology of doing the right thing. Join him for an introspective journey down the slippery slopes of deception as he helps us understand why people behave the way they do.

#15 - Emily Esfahani Smith: There's more to life than being happy

Season 2017 - Episode 185 - Aired 9/11/2017

Our culture is obsessed with happiness, but what if there's a more fulfilling path? Happiness comes and goes, says writer Emily Esfahani Smith, but having meaning in life -- serving something beyond yourself and developing the best within you -- gives you something to hold onto. Learn more about the difference between being happy and having meaning as Smith offers four pillars of a meaningful life.

#16 - Caitlin Quattromani and Lauran Arledge: How our friendship survives our opposing politics

Season 2017 - Episode 184 - Aired 9/11/2017

Can you still be friends with someone who doesn't vote the same way as you? For Caitlin Quattromani and Lauran Arledge, two best friends who think very differently about politics, the outcome of the 2016 US presidential election could have resulted in hostility and disrespect. Hear about how they chose to engage in dialogue instead -- and learn some simple tactics they're using to maintain their bipartisan friendship.

#17 - OluTimehin Adegbeye: Who belongs in a city?

Season 2017 - Episode 183 - Aired 9/8/2017

Underneath every shiny new megacity, there's often a story of communities displaced. In this moving, poetic talk, OluTimehin Adegbeye details how government land grabs are destroying the lives of thousands who live in the coastal communities of Lagos, Nigeria, to make way for a "new Dubai." She compels us to hold our governments and ourselves accountable for keeping our cities safe for everyone. "The only cities worth building, indeed the only futures worth dreaming of, are those that include all of us, no matter who we are or how we make homes for ourselves," she says.

#18 - Benjamin Grant: What it feels like to see Earth from space

Season 2017 - Episode 182 - Aired 9/7/2017

What the astronauts felt when they saw Earth from space changed them forever. Author and artist Benjamin Grant aims to provoke this same feeling of overwhelming scale and beauty in each of us through a series of stunning satellite images that show the effects human beings are having on the planet. "If we can adopt a more expansive perspective, embrace the truth of what is going on and contemplate the long-term health of our planet, we will create a better, safer and smarter future for our one and only home," Grant says.

#19 - Tomás Saraceno: Would you live in a floating city in the sky?

Season 2017 - Episode 181 - Aired 9/7/2017

In a mind-bending talk that blurs the line between science and art, Tomás Saraceno exhibits a series of air-inspired sculptures and installations designed to usher in a new era of sustainability, the "Aerocene." From giant, cloud-like playgrounds suspended 22 meters in the air to a balloon sculpture that travels the world without burning a single drop of fossil fuel, Saraceno's work invites us to explore the bounds of our fragile human and terrestrial ecosystems. (In Spanish with English subtitles.)

#20 - Ray Dalio: How to build a company where the best ideas win

Season 2017 - Episode 180 - Aired 9/6/2017

What if you knew what your coworkers really thought about you and what they were really like? Ray Dalio makes the business case for using radical transparency and algorithmic decision-making to create an idea meritocracy where people can speak up and say what they really think -- even calling out the boss is fair game. Learn more about how these strategies helped Dalio create one of the world's most successful hedge funds and how you might harness the power of data-driven group decision-making.

#21 - Sara DeWitt: 3 fears about screen time for kids -- and why they're not true

Season 2017 - Episode 216 - Aired 10/12/2017

We check our phones upwards of 50 times per day -- but when our kids play around with them, we get nervous. Are screens ruining childhood? Not according to children's media expert Sara DeWitt. In a talk that may make you feel a bit less guilty about handing a tablet to a child while you make dinner, DeWitt envisions a future where we're excited to see kids interacting with screens and shows us exciting ways new technologies can actually help them grow, connect and learn.

#22 - Levon Biss: Mind-blowing, magnified portraits of insects

Season 2017 - Episode 208 - Aired 10/4/2017

Photographer Levon Biss was looking for a new, extraordinary subject when one afternoon he and his young son popped a ground beetle under a microscope and discovered the wondrous world of insects. Applying his knowledge of photography to subjects just five millimeters long, Biss created a process for shooting insects in unbelievable microscopic detail. He shares the resulting portraits -- each comprised of 8- to 10,000 individual shots -- and a story about how inspiration can come from the most unlikely places.

#23 - Jennifer Pluznick: You smell with your body, not just your nose

Season 2017 - Episode 144 - Aired 7/27/2017

Do your kidneys have a sense of smell? Turns out, the same tiny scent detectors found in your nose are also found in some pretty unexpected places -- like your muscles, kidneys and even your lungs. In this quick talk (filled with weird facts), physiologist Jennifer Pluznick explains why they're there and what they do.

#24 - David Lee: Why jobs of the future won't feel like work

Season 2017 - Episode 215 - Aired 10/11/2017

We've all heard that robots are going to take our jobs -- but what can we do about it? Innovation expert David Lee says that we should start designing jobs that unlock our hidden talents and passions -- the things we spend our weekends doing -- to keep us relevant in the age of robotics. "Start asking people what problems they're inspired to solve and what talents they want to bring to work," Lee says. "When you invite people to be more, they can amaze us with how much more they can be."

#25 - Eric Dyer: The forgotten art of the zoetrope

Season 2017 - Episode 214 - Aired 10/10/2017

Artist Eric Dyer spent years working at a computer to produce images for the screen. Longing to get his hands back on his work, he began exploring the zoetrope, a popular 19th-century device that was used to create the illusion of motion long before the arrival of film. In this vibrant talk, he showcases his resulting art inventions: spinning sculptures and that evoke beautiful, dreamlike scenes. (Warning: This talk includes flashing images and lights. Those who are photosensitive or have seizures trigged by strobes are advised to avoid.)