Temptatious articles to read

This is why the potential is always there for me to get nothing done. Here are some of the top links that caught my eye from today's Arts & Letters Daily and Marginal Revolution sites. I could have spent a happy hour reading all of them, but I decided to confine them to my Readability queue instead. I may actually get around to reading these items in the next few months. We'll see if they're as interesting  to me then as they are today.