Answering My Own Question

If I had paused a little longer, or perhaps even taken a slightly fuller screen shot, I would have realized that my original capture was not of Twitter's @holdenweb home page (which is actually shown above, complete with tweet input widget—though it will link to your Twitter home page, as I don't know how to send you to mine; I don't know what you will see if you don't have a Twitter account, but most likely a sign-up page). In fact the previous post shows the @holdenweb profile page.

Never too old to learn, and never (apparently) too old not to need to. Thank you for reading. I now return you to your normal programming.