You know, it's been three years now, and still sometimes I get so angry with Janet doing what she did, leaving me like that.

30, maybe 40 years from now, when you're pruning roses from your wheelchair, I'll stroll by your garden gate and say,

All these years, and you're still the same Sif, doing as you're told, heeling at the feet of those who command you... never to get what you desire... not Haldorr, not...

Thirty years have passed, and I still feel guilty about that prayer, for the next day, I learned that that missile landed on my brother's friend's home and killed him and his father, but did not kill his mother or his sister.

And so now, after several years of really focusing on this question, I've come to the following conclusion: that exercise is the most transformative thing that you can do for your brain today for the following three reasons.

It's taken several years to now look at it detached and say -- as you walk around the corner and a piece of it works with the road and the street, and it appears to have a relationship -- that I started to like it.

Since Bilbao opened, which is now four, five years, both Krens and I have been called with at least 100 opportunities -- China, Brazil, other parts of Spain -- to come in and do the Bilbao effect.

Twenty years later, criminals are still using mobile phones, but they're also building their own mobile phone networks, like this one, which has been deployed in all 31 states of Mexico by the narcos.

And I'm glad to say now, eight years later, I actually spoke to Nick last night, and he wanted to let me know that he was feeling a lot better, and he doesn't do the self-harming anymore.

Now, a decade later, it's really time to push the envelope a little bit, and so a couple years ago I moved to Paris with my husband and youngest child, and we launched Buzzcar a year ago.

I'm here to tell you the story of crazy love, a psychological trap disguised as love, one that millions of women and even a few men fall into every year.

Three years later -- our girls are almost eight now -- We're still holding these meetings.

Only 60 years later, it travels at 80 percent of the speed of sound, and we don't travel any faster today because commercial supersonic air travel turned out to be a bust.

Ten years after the voice first came, I finally graduated, this time with the highest degree in psychology the university had ever given, and one year later, the highest masters, which shall we say isn't bad for a madwoman.

But the problem is, there's only so much you can take, and also when you do that operation, your patients might actually have significant pain in that defect site even two years after the operation.

And I know that sounds dramatic, because to me, standing up here years later, whole and healthy -- to me, it sounds dramatic.

(Laughter) I was staying with my family, with my three children in the village, and one day, a few years later one day, a woman called Kantabai came to me.

(Laughter) He was a Bernese mountain dog, and my ex-husband and I adopted him, and about six months in, we realized that he was a mess.

A hundred and eighteen years later, the solution is exactly the same: It's about ensuring that they have access to this bar of soap, and that they're using it, because that's the number one way to actually stop cholera from spreading.

So it is fitting and scary that I have returned to this city 16 years later and I have chosen this stage to finally stop hiding.

So we set up a foundation, which now has, for 11 years, three schools, where we started asking the same questions, how do you redesign school for wisdom?

And years later, he would ask what he could do to repay his God and become worthy of this second chance.

In fact, half a century of anti-poverty programs have left more poor people in slavery than in any other time in human history.

I'd been thinking about it a lot lately, partly because it's now exactly 100 years since drugs were first banned in the United States and Britain, and we then imposed that on the rest of the world.

And when I went and met the addicts in Portugal, what they said is, as they rediscovered purpose, they rediscovered bonds and relationships with the wider society.

That may sound like a long time, but when you consider that our universe is 14 billion years old, on a cosmic scale, it's incredibly fast - the equivalent of about 2.5 hours in an entire year.

For nearly 40 of the 45 million years that camels have been around, you could only find them in North America, around 20 different species, maybe more.

(Laughter) And after 10 years of this, my wife said, "You've got to do this thing you've been talking about, and build the vending machine."

HT: Yes, so 41 years after the original strike, we may be the best place in the world to be a woman, but our work isn't done.

And you spend 25 years in jail, until someone comes along and proves -- has the evidence to prove -- that you actually were in Florida when this crime was committed.

So four years go by and the day comes when all the results are in, and Elissa looked down at our first scatterplot and literally gasped, because there was a pattern to the data, and it was the exact gradient that we most feared might exist.

(Applause) And this dream isn't so crazy if you think of the mud city of Shibam in Yemen that was built in the 16th century and has lasted now for 500 years.

With each passing year, her contributions become more vital: overfishing and habitat destruction have decimated salmon populations, putting the whales at near-constant risk of starvation.

17 who were happily in love, 15 who had just been dumped, and we're just starting our third experiment: studying people who report that they're still in love after 10 to 25 years of marriage.

She had no shortage of material: in the decades following the Civil War, Southern whites attempted to reassert their power by committing crimes against Black people including suppressing their votes, vandalizing their businesses, and even murdering them.

I'm here to tell you my story, because it was precisely 22 years later that I even wanted to open up enough to talk about it, when a friend encouraged me.

And 10 years into the project, the skeptics were still going strong -- says, "You're two-thirds through this project, and you've managed to only sequence a very tiny percentage of the whole genome."

Ten years later, with my group of ninja origami robotic researchers -- about 22 of them right now -- we have a new generation of robogamis, and they're a little more effective and they do more than that.

The Brown administration, and a bunch of my friends, basically leveled the energy efficiency of California, so it's the same now, 30 years later, even though our economy has gone up 80 percent, per capita.

And so we began to give away, and now after 30 years, my wife and I are reverse tithers -- we give away 90 percent and live on 10.

And so these people, over 7, 000 people, less than one month later, organized in a hundred cities around the globe and -- this is L.A. -- protested the Church of Scientology, and they have continued to do so, now, two full years after the fact.

As you see, 22 years later, we are still here together, because I can't bring Tariq back from the dead, you can't take Tony out of prison, but the one thing we can do is make sure no other young people in our community end up dead or end up in prison.