I’m a believer in wishful thinking, in the power of our hopes to become self-fulfilling. I even believe that war is going to end! But at some point, if wishful thinking diverges too sharply from what we can reasonably expect from reality, it morphs into denial or delusion. David Deutsch’s hope that science will keep [...]

In the wee hours of this morning my eyes popped open, and I spent the next half hour trying to figure out what to write about in this column. After careful, albeit groggy deliberation, I decided to go with free will, both because of the tie-in to New Year’s resolutions and because some high-profile scientists [...]

Arthur Stanley Eddington was an interesting fellow. The English astrophysicist who photographed the solar eclipse that validated Einstein’s theory of general relativity was also a Quaker, a pacifist, and a clever popular writer. In his 1928 book The Nature of the Physical World [1] he began by noting that he had before him two tables: [...]

The late philosopher Robert Nozick, talking about the deep question of why there is something rather than nothing, quipped: “Someone who proposes a non-strange answer shows he didn’t understand the question.” So, when Scott Aaronson began a talk three weeks ago by saying it would be “the looniest talk I’ve ever given,” it was a [...]

“Every political philosophy has to begin with a theory of human nature,” wrote Harvard evolutionary biologist Richard Lewontin in his book Biology as Ideology. Thomas Hobbes, for example, believed that humans in a “state of nature,” or what today we would call hunter-gatherer societies, lived a life that was “solitary, poor, nasty, brutish and short” [...]