Anyone may post a comment on this blog, and I certainly hope you will contribute questions and add your ideas. You do have to register, but this is very easy, and I will never share your email address with anyone. When you post a comment, it won’t appear immediately. This gives me time to preview comments and delete spam or anything else that might be inappropriate. Please join the conversation!
UPDATE: The link for posting a comment should say “Post a comment” but in some cases it may say “No comments” if no comments have been posted yet. Once a comment has been posted, it will say, for example, “2 comments”. I’m trying to eliminate the “No comments” link, which is not very intuitive.