Every so often, the Long Now Foundation here in San Francisco hosts a debate. It might be about nuclear power or synthetic biology or perhaps the very notion of human progress — high-stakes stuff. But the format is nothing like the showdowns on cable news or the debates in election season.
Instead, it goes like this:
There are two debaters, Alice and Bob. Alice takes the podium, makes her argument. Then Bob takes her place, but before he can present his counter-argument, he must summarize Alice’s argument to her satisfaction — a demonstration of respect and good faith. Only when Alice agrees that Bob has got it right is he permitted to proceed with his own argument — and then, when he’s finished, Alice must summarize it to his satisfaction.
The first time I saw one of these debates, it blew my mind.