Over the last 12-16 hours, there have been a few technical difficulties with my blog. For readers, it showed up if you tried to leave a comment. It looked like the comment worked, but the comment did not show up.
In fact, there was a database problem. If you tried to leave a comment last night or this morning, the comment was not saved. Plus, I was not able to do anything on the blog that required database modification (i.e., writing new posts).
However, I think I have corrected the problem. If you left a comment in the last 12-16 hours, please comment again.
Thanks for your patience!