Fast forward more than two decades

Look a decade ago, look two decades ago markedly different.

I've been doing, I've been doing working memory studies for two decades.

They have also given funding for two decades to this whole program.

The last two decades have been the champagne era for dirty lucre.

Over several decades,

But it got violent in the last two decades and includes decapitation and the death of two mayors.

That's been very popular for a very long time as had Michael been in decades and decades and decades.

So for three decades,

For nearly two decades now, the news has been bad and the images have been haunting.

We've spent decades professionalizing implementation.

It's been done for decades.

So decades ago, not years ago,

And it went on for decades.

What we see for more than two decades is that open source has consistently out innovated proprietary software.

(Applause.) For the first time in two decades, Osama bin Laden is not a threat to this country.

They've been swept away over the last two decades by these types of world flattening digitization technologies, right?

The United States is the only superpower, and it's likely to remain that way for two or three decades.

He has had that job for decades.

This was a startup killer for decades.

Since then it's been four decades now

We are living into extraordinary decades ahead.

Over two decades ago, the world insisted to Africa that markets must be liberalized, that economies must be structurally adjusted.

After decades of civil war, order was restored.

This tree has been standing for five decades.

That's about where it was several decades ago.

Some successful people look years ahead, or decades.

Again, Bandura recognized this years ago, decades ago.

When I began recording over four decades ago,

And make large geographical areas uninhabitable for decades.

And in Papua New Guinea, they were making stone axes until two decades ago, just as a course of practical matters.

To give you some perspective, in the previous two decades of searching, we had only known about 400 prior to Kepler.

And this is an insight that came, about two decades ago, from a person that I'm very fortunate to work with,

And today, the United States of America is less dependent on foreign oil than in any time in the last two decades.

So these poorest two billion will, in the next decades, increase to three billion, and they will thereafter increase to four billion.

But in the last two decades, it has experienced an unprecedented expansion, now accounting for roughly 15 percent of the world's GDP.

I've come here every day now for two decades... . ..painfully picking up a few of the least difficult fragments of their knowledge.

Meanwhile government isn't helping decades of rising inequality. laughter

And for decades, I'm going, why does this happen?

Chileans have been building with confined masonry for decades.

We've been outsourcing the facts of life for decades.

It's been known for decades what causes this malignancy.

Takes decades. It's what we call a shake'n'bake colony.

In the United States, 20 million new jobs have been created during the past two decades, most of them in the service sector.

I've been writing science and historical fiction for three decades.