This week, in a break from the show’s usual format, we sit down with Douglas Wolk, the author of “All of the Marvels: A Journey to the Ends of the Biggest Story Ever Told” and discuss his monumental achievement of reading every Marvel comic. We have an epic, wide-ranging discussion about what it all means, whether the older comics are primarily art or artifact, and whether you can make something morally coherent out of a story with so many authors representing fundamentally different eras of American history. And for the first time before a national audience, Douglas debuts his delightful ukulele theme song!