So, I'm looking at these issues of collapses for a lot of past societies and for many present societies.

Others battle oppressive societies.

The official dogma of all Western industrial societies.

How can we understand what makes some societies more fragile than other societies?

Data powers high tech societies.

Anthropologists have found evidence of romantic love in 170 societies.

In primitive societies barter was used.

land animals, plants, and human societies.

And, again, civil societies breathing down the neck of the establishment.

Societies, cultures can be improved through... careful manipulation of historical events.

The history of all hitherto existing societies is the history of class struggles.

Our ancient societies all valued organ meat.

In medieval societies there were defined allegiances.

lives in the societies without independent press.

How do we make stable societies? Longevity.

Human societies got larger, denser, more interconnected.

And you have more choice driven societies.

South Korea built one of the most patriarchal societies we know about.

International aid and development has been going on for years, but extremism in those societies, in many of those societies, has been on the rise.

But nevertheless, there are certain common threads that emerge from these comparisons of past societies that did or did not collapse and threatened societies today.

Kids do worse in the more unequal societies.

We know our societies have to radically change.

Without ground water, our societies would be parched.

We can demilitarize societies and pour resources, instead, into reservoirs of genuine security.

I've looked at 130 societies through the demographic yearbooks of the United Nations.

For one of my books, I looked at divorce data in 58 societies.

Because those who aspire to democratic culture are in power, or have societies that are leading globalized, powerful societies, powerful countries.

Products made from petroleum are vital to modern societies.

I study Muslim societies around the world at Gallup.

People are living longer and societies are getting grayer.

Karl Marx says, The history of all hitherto existing societies is the history of class struggles.

And the second thing we should do is understand the genius of our societies.

So, that's one general conclusion about why societies make bad decisions conflicts of interest.

Our modern Western societies are more complex than before, in this time of migration.

Agricultural societies soon became the dominant way of life for people throughout the world.

In over 175 societies, people have left their evidence of this powerful brain system.

But there is another part that we must together rebuild, to build our societies, our modern family of societies, we are at a point where we cannot go back.

It's crucial to understand, I believe, because of technology and because of globalization, societies from bottom up.

And you have the market revolution of the 1980s and the huge increase of inequality in societies.

Eastern societies are different from Western ones because there is a stronger sense of collectivism.

I'm now teaching a course at UCLA, to UCLA undergraduates, on these collapses of societies.

So the stuff I'm talking about is the peculiar problem of modern, affluent, Western societies.

There's no life without it for ecosystems, societies, and individuals.

Problems that have plagued societies for centuries solved almost overnight.

They've been building civilizational demand for their values on the grassroots, and we've been seeing those societies slowly transition to societies that are increasingly asking for a form of Islamism.