Using examples from vacations to colonoscopies, Nobel laureate and founder of behavioral economics Daniel Kahneman reveals how our "experiencing selves" and our "remembering selves" perceive happiness differently. This new insight has profound implications for economics, public policy -- and our own self-awareness.

Nathan Myhrvold of Intellectual Ventures demonstrated a STARWARS system at TED to fight malaria. It uses tiny lasers to shoot down disease-carrying mosquitoes, but that wasn't SCIFI enough.. so this one pOWNz the skeeterz with EXTRA lasers.. and some band named Three Days Grace..

Psychologist Barry Schwartz takes aim at a central tenet of western societies: freedom of choice. In Schwartz's estimation, choice has made us not freer but more paralyzed, not happier but more dissatisfied.

Behavioral economist Dan Ariely, the author of Predictably Irrational, uses classic visual illusions and his own counterintuitive (and sometimes shocking) research findings to show how we're not as rational as we think when we make decisions. Fascinating...

Behavioral economist Dan Ariely studies the bugs in our moral code: the hidden reasons we think it's OK to cheat or steal (sometimes). Clever studies help make his point that we're predictably irrational -- and can be influenced in ways we can't grasp.

Tony Robbins discusses the "invisible forces" that motivate everyone's actions -- and high-fives Al Gore in the front row.

This video is chock full of "I saw that on Star Trek" tech. Gel computers, nanoprobes, and the focus of the video which the presenter admits are basically "star trek replicators". Awesome.

Corvids are great.

The end result is unbelievably real.

This is worth it just to hear the Parrot sing "Happy Birthday" to Al Gore.

Career analyst Dan Pink examines the puzzle of motivation, starting with a fact that social scientists know but most managers don't: Traditional rewards aren't always as effective as we think. Listen for illuminating stories -- and maybe, a way forward.

Sir Ken Robinson makes an entertaining and profoundly moving case for creating an education system that nurtures (rather than undermines) creativity.

Even as mega-banks topple, Juan Enriquez says the big reboot is yet to come. But don't look for it on your ballot -- or in the stock exchange. It'll come from science labs, and it promises keener bodies and minds. Our kids are going to be ... different.

The most amazing talk on the the human brain I have ever seen.

Savage-Rumbaugh's work with bonobo apes, which can understand spoken language and learn tasks by watching, forces the audience to rethink how much of what a species can do is determined by biology -- and how much by cultural exposure.

Vilayanur Ramachandran tells us what brain damage can reveal about the connection between celebral tissue and the mind, using three startling delusions as examples.

Tipping Point author Malcolm Gladwell gets inside the food industry's pursuit of the perfect spaghetti sauce -- and makes a larger argument about the nature of choice and happiness.

Two Pilobolus dancers perform "Symbiosis." Does it trace the birth of a relationship? Or the co-evolution of symbiotic species? Music: "God Music," George Crumb; "Fratres," Arvo Part; "MorangoAlmost a Tango," Thomas Oboe Lee.

Neuroanatomist Jill Bolte Taylor had an opportunity few brain scientists would wish for: One morning, she realized she was having a massive stroke. As it happened -- as she felt her brain functions slip away one by one, speech, movement, understanding -- she studied and remembered every moment. This is a powerful story about how our brains define us and connect us to the world and to one another.

Johnny Lee demos his amazing Wii Remote hacks, which transform the $40 game piece into a digital whiteboard, a touchscreen and a head-mounted 3-D viewer.

This demo -- from Pattie Maes' lab at MIT, spearheaded by Pranav Mistry -- was the buzz of TED. It's a wearable device with a projector that paves the way for profound interaction with our environment. Imagine "Minority Report" and then some.

In keeping with the theme of TED2008, professor Stephen Hawking asks some Big Questions about our universe -- How did the universe begin? How did life begin? Are we alone? -- and discusses how we might go about answering them.

Artist Theo Jansen demonstrates the amazingly lifelike kinetic sculptures he builds from plastic tubes and lemonade bottles. His creatures are designed to move -- and even survive -- on their own.

Bill Gates hopes to solve some of the world's biggest problems using a new kind of philanthropy. In a passionate and, yes, funny 18 minutes, he asks us to consider two big questions and how we might answer them.

"Rock star physicist" Brian Cox talks about his work on the Large Hadron Collider at CERN. Discussing the biggest of big science in an engaging, accessible way, Cox brings us along on a tour of the massive complex and describes his part in it -- and the vital role it's going to play in understanding our universe.

"Eat, Pray, Love" Author Elizabeth Gilbert muses on the impossible things we expect from artists and geniuses -- and shares the radical idea that, instead of the rare person "being" a genius, all of us "have" a genius. It's a funny, personal and surprisingly moving talk.

"Bonk" author Mary Roach delves into obscure scientific research, some of it centuries old, to make 10 surprising claims about sexual climax, ranging from the bizarre to the hilarious. (This talk is aimed at adults. Viewer discretion advised.)

Clifford Stoll could talk about the atmosphere of Jupiter. Or hunting KGB hackers. Or Klein bottles, computers in classrooms, the future. But he's not going to. Which is fine, because it would be criminal to confine a man with interests as multifarious as Stoll's to give a talk on any one topic. Instead, he simply captivates his audience with a wildly energetic sprinkling of anecdotes, observations, asides.

With the drama and urgency of a sportscaster, statistics guru Hans Rosling uses an amazing new presentation tool, Gapminder, to debunk several myths about world development. Rosling is professor of international health at Sweden's Karolinska Institute, and founder of Gapminder, a nonprofit that brings vital global data to life.