I'll tell you an explanation that I find commonly overrated and speculative in the extreme: the idea that things that succeed in popular culture do that because they hit the temper of the times.

It's fair to say that there's something retrograde about putting the leader of Star Wars rebellion in the position of "slave in a bikini." There's no question that that's a fair point. But, it is true, and it's kind of remarkable, that at this point in our history, the slave girl, for a time in the bikini, is the one who chokes her captor with her bare hands and using the chain with which he bound her. That's powerful stuff. That's more retributive feminism than I think teenaged boys had ever seen.

I think President Barack Obama has been an extraordinarily successful president, and that this period will record that with a bunch of exclamation points. But obviously not everybody thinks that.

How do things, whether they are movies, or plays, Hamilton, or people, ideas - how do they become transformative or iconic? That is in some ways what the actual Star Wars saga gets at, with the tale of the rise and the fall of the empire and the rise and the fall of Republics.

I started to read as obsessively about Star Wars as I once did about Kant - and still do about behavioral economics and behavioral psychology.

A well-functioning democracy has a culture of free speech, not simply legal protection of free speech. It encourages independence of mind. It imparts a willingness to challenge prevailing opinion through both words and deeds. Equally important, it encourages a certain set of attitudes in listeners, one that gives a respectful hearing to those who do not embrace the conventional wisdom. In a culture of free speech, the attitude of listeners is no less important than that of speakers.

I got into the genesis of Star Wars, and the tale seemed to me endlessly fascinating.