For the better part of the last year, I’ve been working on a book with a young man who grew up in a Lutheran home but now identifies as an atheist. The book is intended to be a dialogue, to explore what we each believe, why, how we came to those beliefs, and how we bridge our differences in an increasingly pluralistic world. It’s been an incredibly fun project, as Ryan and I have a fair amount in common, both love candid and challenging conversations, and because, frankly, he’s a really great person to work with. But it’s also been quite challenging, as he raises questions for me that I haven’t, quite honestly, had to think about...