The decline of violence is a fractal phenomenon.

There was only one way to do calculating and that was by hand.

And it's funny it feels a bit like this now for oil.

Has been for decades.

Uh... uh, this is a technique i developed decades ago

This is from the FBI Uniform Crime Statistics.

So let us remember that this is a season of progress.

But others wouldn't be discovered for many years.

Modern economies,

After decades of civil war, order was restored.

Today I am 22.

You worked here over ten years, right? Something like that.

let's make a birdhouse for your mom for Christmas.

The aquifers need thousands of years to fill up, but can be pumped dry in a few decades,

It may take several decades to track them down.

Others think about Malthusian nightmares.

Many years ago, I visited the center of Hiroshima.

I'd like to talk about what I call our warehouses for hope.

He lived with them for a few decades.

Dozens of young people attended the demonstration.

Several dozen young people participated in the demonstration.

Return to an ordinary farmer, she said.

And what goes on in the future?

And that mathematics is at the core of the best machine learning programs that we have now.

So, big data isn't new.

This is a very important picture of the evolution of energy systems.

So this just summarizes it.

Strike three is menopause.

He worked hard for peace for these ten years.

Here then men saluted one another, and heard and told the news, and went their ways again.

Bacteria are the oldest living organisms on the earth.

What do you want from me? You're looking at major time.

(Laughter)

The world Leymah Gbowee was given was a world at war.

So the question is Can we do that? And I think we can.

So amazing example of an adaptation to a very resource constrained environment and in that sense, very relevant to the kind of challenges we're going to be facing over the next few years, next few decades.

A decade!

I began playing golf years ago.

This has been what has been a difficult sign to some of us.

It will be difficult enough to avoid disaster in the next hundred years,

I would certainly think.

How many other people?

It actually turns out, though, even though we've only known of long range propagation for a few decades, the whales clearly have evolved, over tens of millions of years, a way to exploit this amazing property of the ocean.

Janis, there are several billion people several billion who need answers.

So the first steps of the story that I told you about took a billion years a piece.