Assumed Audience: anyone willing to think hard about social media and its place in our lives. I. The Itch I began writing this post from our vacation bedroom in Jamaica, about five days before I could possibly publish it: before we left, I shut down the machines which can generate new versions of my site. I wished, as I started this post, that I had an equally effective measure for cutting off access to social media on this trip. I tried, of course. Before we left on June 1, I removed Slack a...