While campaigning, President Donald Trump said, “We’re a nation in decline.”

Now that he’s president, the left agrees.

“We are witnessing the collapse and implosion of the American empire,” says Cornel West.

Are the predictors of doom correct? Will America collapse like so many civilizations before us?

If we don’t learn from history, says historian Johan Norberg, that might happen.

“It’s a clash within every civilization on whether they should keep going, be open to innovation and progress, or whether they should retreat and decline,” he says in my new video.

His book, “Peak Human: What We Can Learn from History’s Greatest Civilizations,” looks at the “golden ages” of Ancient Athens, Ancient Rome, Song China, the Abbasid Dynasty in Baghdad, Renaissance Italy, the Dutch Republic and the Anglosphere.

Norberg argues that once people acquire a certain amount of........

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