In our country, learned ignorance is on the rise.

I have friends, political scientists, sociologists, who all share an interest at least in certain kinds of science fiction.

Default is not in our stars, but in ourselves.

I believe that the only important structural obstacles to world prosperity are the obsolete doctrines that clutter the minds of men.

Every once in a while I feel despair over the fate of the planet. If you’ve been following climate science, you know what I mean: the sense that we’re hurtling toward catastrophe but nobody wants to hear about it or do anything to avert it.

Are you, or is someone you know, a gadget freak? If so, you doubtless know that Wednesday was iPhone 5 day, the day Apple unveiled its latest way for people to avoid actually speaking to or even looking at whoever they're with.

We have a lot of evidence on what happens when you raise the minimum wage. And the evidence is overwhelmingly positive: Hiking the minimum wage has little or no adverse effect on employment while significantly increasing workers' earnings.